The following international directory consists of individuals currently working in mathematics education. The list may be browsed by country or in full.

Any comments, additions, deletions or alterations should be posted to: alan@cdnalma.poznan.pl

Mathematics Education

International Directory

The following international directory consists of individuals currently working in mathematics education. The list may be browsed by country or in full.

The full list follows. For information on particular countries click below:

· Australia

· Austtria

· Belgium

· Botswana

· Brazil

· Brunei Darussalam

· Canada

· Chile

· Colombia

· Cuba

· Democratic Republic of the Congo

· Denmark

· Egypt

· Finland

· France

· Germany

· Ghana

· Greece

· Iceland

· India

· Ireland

· Israel

· Italy

· Japan

· Jordan

· Kenya

· Lesotho

· Liberia

· Madagascar

· Malawi

· Malta

· Mexico

· Mozambique

· The Netherlands

· New Zealand

· Nigeria

· Northern Ireland

· Norway

· Oman

· Palestine

· Pakistan

· Peru

· Poland

· Portugal

· Romania

· Russia

· Saudi Arabia

· Serbia

· Singapore

· Slovenia

· South Africa

· Spain

· Swaziland

· Sweden

· Switzerland

· Tanzania

· Turkey

· United Arab Emirates

· United Kingdom

· United States of America

· Venezuela

· Zambia

Any comments, additions, deletions or alterations should be posted to: alan@cdnalma.poznan.pl

Full List

Aaten, Aldine, _a.aaten@fi.uu.nl_, Freudenthal Institute for Science and Mathematics Education, University Utrecht, P.O. Box 9432, 3506 GK Utrecht,The Netherlands, (+31)(0) 30 2635579, Fax: (+ 31)(0) 30 2660430

Abdullah,Siti Aishah, sitiaishah@kelantan.uitm.edu.my,siti_aisha2@yahoo.com, University Technology MARA Malaysia, Faculty Science Computer & Mathematics, Kampus Kota Bharu,15060 Kota Bharu. Kelantan. MALAYSIA (+06)(099762000)

Abramovich, Sergei, abramovs@potsdam.edu , Department of Curriculum & Instruction, School of Education and Professional Studies, State University of New York, Potsdam, NY 13676, USA voice: +1-315-267-2541 fax: +1- 315-267-4802 http://www2.potsdam.edu/abramovs

Abuelwan, Reda, abuelwan@squ.edu.om, p o box 32, Postal code 3123 Muscat, Sultan Qaboos University, + 968 99445787, www.squ.edu.om

Aczel, James, j.c.aczel@open.ac.uk, Institute of Educational Technology, The Open University, Walton Hall, Milton Keynes; MK7 6AA; Tel: +44 (0)1908 652953

Adams, Nadine n.adams@cqu.edu.au Learning and Teaching Services, Central Queensland University, Mackay QLD 4741, Australia, Phone (+61) (7) 49407856

Adeleye,Timothy Adewale,walecrown1360@yahoo.com,Mathematics Education Department,School of Sciences,Federal College of Education (Technical),Umunze,Nigeria,+234-7033442027,+234-8025328077

ADENEGAN, Kehinde Emmanuel, adenegankehinde@gmail.com, ademmak07@yahoo.com, Department of Mathematics Adeyemi College of Education P.M.B. 520 Ondo, +2348036576466, +2348053673623, +2348077416543.

Adihou, Adolphe, Adolphe.Adihou@usherbrooke.ca , Université de Sherbrooke, Faculté d’Éducation, 2500 boul. de l’Université, Sherbrooke, Qc, Canada, J1K 2R1, (819)-821-8000 #65600 http://www.creas.ca/membres-professeurs-reguliers/#Adihou

Adiredja, Aditya, adiredja@math.arizona.edu, The University of Arizona, ENR2, Rm S317, 1064 E. Lowell St., Tucson, AZ 85719, USA, +1-520-621-0978, http://math.arizona.edu/~merp/medfac.html

Adjiage, Robert, robert.adjiage@iufm.unistra.fr, Institut Universitaire de Formation des Maitres, 141 avenue de Colmar 67100 Strasbourg FR, (+33) (0)3 88 51 43 27

Adler, Jill, jill.adler@wits.ac.za, School of Education; University of the Witwatersrand; P.O.Wits, Johannesburg, 2050 South Africa; Tel: +27 11 7173413; www.jilladler.co.za

Agarkar, Sudhakar, sagarkar@vpmthane.org, VPM's Academy of International Education and Research, Dr. Bedekar Vidya Mandir, Naupada, Thane 400602, Maharashtra State, India, +91-8097274097, www.vpmthane.org/aier.

Agudelo-Valderrama, Ana Cecilia, agudelo.cecilia@gmail.com, Universidad Pedagógica Nacional, Facultad de Ciencia y Tecnología, Calle 72 No. 11 - 86, Edificio B, Oficina 318, Bogotá, Colombia, Sur América, Tel: (57) 1 5941894 Ext. 254.

Ahmed, Afzal a.ahmed@chi.ac.uk Emeritus Professor in Mathematics Education, The Mathematics Centre, University of Chichester, Bognor Regis Campus; Upper Bognor Road; Bognor Regis PO21 1HR; UK; Tel: +44 (0)1243 812078

Ainley, Janet, janet.ainley@le.ac.uk, School of Education, University of Leicester, 21 University Road, Leicester LE1 7RF, +44 (0)116 252 3690, www.le.ac.uk/education/currentstaff/janetainley

Akinsola, Mojeed Kolawole, <akinsolamk@gmail.com>, Department of Science and Technology Education; Faculty of Education, University of Ibadan; Ibadan, Nigeria; Tel: +234 803 405 3352; +234 807 822 5023, http://www.ui.edu.ng

Akkoc, Hatice, hakkoc@marmara.edu.tr, haticeakkoc@hotmail.com, Department of Mathematics Education; Faculty of Ataturk Education, Marmara University, Goztepe Campus 34722, Kadikoy/Istanbul, TURKEY, +(90) 216 3459090 External:1313, http://akademik.marmara.edu.tr/hakkoc

Aksoy, Yilmaz, yaksoy@erciyes.edu.tr, Faculty of Education, Erciyes University, Melikgazi Kayseri, TR, (+90)505 319 07 60, Fax: (+90) 352 437 88 34, http://egitim.erciyes.edu.tr/personel/index.php?yazi=73

Akst, Geoffrey, akst@chelsea.ios.com, Geoffrey Akst Mathematics Department; Manhattan Community College; City University of New York; 199 Chambers Street; New York 10007; USA; Tel: 212 346-8530 -8531 or -8532 (office); Fax: 212 346-8550; 212 683-1860 (home)

Alagic, Mara, mara.alagic@wichita.edu, Mathematics Education; Wichita State University; Wichita, KS; 67260-0028; USA; Tel: 316 978 6974; http://www.education.wichita.edu/alagic/

Alagic, Mara, mara@math.twsu.edu, Mathematics Education; Curriculum and Instruction Department; Wichita State University; Wichita, KS 67260 - 0028; USA, Tel: : (316) 978 6974; Fax: (316) 978 6935; http://education.twsu.edu/faculty/mara_alagic.html

Alangui, Wilfredo, wvalangui@up.edu.ph, University of the Philippines Baguio, Governor Pack Road, 2600 Baguio City, Philippines, +63744427231, http//www.upb.edu.ph

AlAttas, Husain, halattas@kfupm.edu.sa, Department of Mathematics and Statistics, King Fahd University of Petroleum and Minerals, Dhahran 31261, Saudi Arabia, (+966) 138601763.

Albert, Jeanne. geanne@netvision.net.il David Yellin Teachers' College, Jerusalem, Israel

Alcock, Lara, l.j.alcock@lboro.ac.uk, Mathematics Education Centre, Loughborough University, Loughborough, LE11 3TU, UK, +44 (0)1509 228255, http://mec.lboro.ac.uk/pages/people/lja.html

Alexander, Patricia, p.alexander@gold.ac.uk , Goldsmiths, University of London, New Cross, London, SE14 6NW, UK, +44 0207 919 7071, +44 0781 727 0075

Alexander, Richard, richardalexander@hotmail.com, Waterford Kamhlaba United World College, PO Box 52, Mbabane, Swaziland, 00268 24220866

Allen, Barbara, B.M.Allen@open.ac.uk,Centre for Mathematics Education; The Open University; Walton Hall; Milton Keynes; Buckinghamshire; MK7 6AA; Tel: 44 (0)1908 653550

Almeida, Denis, D.F.Almeida@exeter.ac.uk, School of Education; University of Exeter; Heavitree R; Exeter EX1 2LU; UK; Tel: +44 (0)1392-264762

Almeida, Maria da Conceicao, calmeida@iep.uminho.pt, Departamento de Metodologias da Educacao; Instituto de Educacao e Psicologia; Universidade do Minho; Campus de Gualtar; 4710 BRAGA-PORTUGAL; Tel: 351 53 60 4271; Fax: 351 53 6 78987

Almeqdadi, Farouq, falmeqdadi@ecae.ac.ae, Curriculum & Instruction (Math Education), Emirates College for Advanced Education (ECAE), P. O. Box 126662 Abu Dhabi, UAE, (+971) 50 3314351, (+971) 2 5099860, FAX: (+971) 2 5099888, www.ecae.ac.ae

Al Mufleh, Khalaf, dr.almufleh@gmail.com, Department of Educational Supervision, Riyadh Schools for Boys and Girls and American High School Diploma, Al Nasrieh, Riyadh (11441),Saudi Arabia, 00966562538682

Alsawaie, Othman, alsawaie@uaeu.ac.ae , Department of Curriculum & Instruction, College of Education , United Arab Emirates University, Al-Ain, Abu Dhabi, United Arab Emirates, Tel: 00971507512066

Alsawaie, Othman, alsawaie@Yahoo.com , Irbid, Jordan

Alshehri, Zafer, tfalshehri@yahoo.com, Department of Curriculum and Instruction, College of Education, Abha, King Khalid University, Saudi Arabia, (+966) (7) 504785697, Fax: (+966) (7) 2418147

Alshwaikh, Jehad, jalshwaikh@gmail.com, Faculty of Education, Birzeit University, PO Box 14 Birzeit, West Bank, Palestine, Tel: +97022982957, http://www.birzeit.edu/en/faculty-staff/jehad-alshwaikh and https://www.researchgate.net/profile/Jehad_Alshwaikh

Álvarez-Alfonso, Ingrith Yadira, ialvarez@pedagogica.edu.co, Universidad Pedagógica Nacional, Bogotá-Colombia, Tel: (57) 1 5941894 Ext. 254.

Amdal, Arne, arne.amdal@plu.ntnu.no, Norwegian University of Science and Technology, Programme for Teacher Education, N-7491 Trondheim, Norway, (+47) 73 55 03 68, Fax: (+ 47) 73 59 10 12

Ameis, Jerry, j.ameis@uwinnipeg.ca, Faculty of Education, University of Winnipeg, 515 Portage Avenue, Winnipeg, Manitoba, R3B-2E9, CANADA, Phone - 204 786 9936, Fax - 204 786 7803

Amin, Ayman Ahmed, ayman.aamin@gmail.com, Faculty of Commerce, Menoufia University, Egypt, +20482220011

Amit, Miriam. amit@bgu.ac.ilBen Gurion University, Beer Sheva, 84105, Israel. Tel: 972-8-6472746 Fax: 972-8-646936

Anacona, Maribel, maranaco@makarenko.univalle.edu.co, Universidad del Valle; Ciudad Universitaria Melendez; Instituto de Educacion y Pedagogia; Grupo Educacion Matematica; Edificio 388 Oficina 3017; Santiago de Cali; Colombia; Tel: (+57) 2 330 91 33; Fax: (+57) 2 339 23 11; http://makarenko.univalle.edu.co/~GEM-UV/

Andadre, Luisa, landrade@zeus.uniandes.edu.co,una empresa docente; Universidad de los Andes; Apartado Aereo 4976; Bogota; Colombia; Tel: (571) 284-9911 Ext 2717; Fax: (571) 235-1726 / 284-1890

Anderson, Judy, judy.anderson@sydney.edu.au, Faculty of Education and Social Work (A35), The University of Sydney, NSW, 2006, Australia, (+61) (2) 9351 6264, Fax: (+61) (2) 93512606, http://fdp.edsw.usyd.edu.au/users/janderson

Anderson, Laura, slander@umslvma.umsl.edu, School of Education; University of Missouri - St. Louis; 4356 West Pine Blvd.; St. Louis; MO; 63108 USA; Tel: (314) 516-6826; Fax: (314)534-6800

Andersson, Annica, annica.andersson@mah.se , Malmö University, Box 50500 , 202 50 Malmö, Sweden, Tel: +46 730742217

Andrews, Paul, pra23@cam.ac.uk, University of Cambridge Faculty of Education, 184 Hills Road Cambridge CB2 8PQ, UK +44 (0) 1223 767569 http://www.educ.cam.ac.uk/people/staff/andrews/

Andrews, Paul R. paul.andrews@mnd.su.se Department of Mathematics and Science Education, Stockholm University, SE-106 91 Stockholm, Sweden.

Anonsen, Carl, carla@hifm.no, Finnmark University College, Department of Business and Social Studies, Follumsvei 31, N-9509 Alta, Norway, (+47) 78 45 01 41

Ansell, Bob, bob.ansell@nene.ac.uk, Nene College of Higher Education; Northampton; NN2 7AL; UK; Tel 01604 735500 Ext 2074; Fax 01604 720636;

Anthony, Glenda, G.J.Anthony@massey.ac.nz, Massey University; Department of Technology, Science & Mathematics Education; Private Bag 11222; Palmerston North; New Zealand; Tel: +64 06 3505799 X 8600; Fax: +64 06 351 3472

Apel, Tamar, tamat@bezeqint.net, CIMEH, Institute of Mathematics with a Humanistic Approach; P.O.B. 319 Biniamina,; 30500; Israel; Telefax. 972-4-6380210

Apple, Michael, applemw@macc.wisc.edu, Department of Curriculum and Instruction and Educational Policy Studies; University of Wisconsin; Madison; 225 North Mills Street; Madison; WI 53706; USA; Tel: 608 263 2707

Appelbaum, Peter, appelbaum@arcadia.edu, Department of Education; Arcadia University; Glenside, PA 19038-3295 USA; Tel: 1 215-572-4476; Fax: 1 215-572-4705; http://gargoyle.arcadia.edu/appelbaum/

Appleton, Nigel, n.appleton@ucsm.ac.uk, Department of Mathematics; University College of St. Martin; Lancaster; LA1 3JD; UK; Tel: +44)(0)1524 384473; Fax: +(44) (0)1524 383638

Arabini, Elena, elena.arabini@gmail.com, ITI F.Corni, via Largo A.Moro 25, 41124 Modena, Italy, 39 3339968675

Arbelaez, Gabriela, gabi@hypatia.univalle.edu.co, Universidad del Valle; Ciudad Universitaria Melendez; Instituto de Educacion y Pedagogia; Grupo Educacion Matematica; Edificio 388 Oficina 3017; Santiago de Cali; Colombia; Tel: (+57) 2 330 91 33; Fax: (+57) 2 339 23 11; http://makarenko.univalle.edu.co/~GEM-UV/

Arboleda, Luis Carlos, luis.carlos.arboleda@gmail.com, Instituto de Educación y Pedagogía, Universidad del Valle, Grupo de Educación Matemática, Grupo de Historia de Matemáticas, Edificio 388 Oficina 3017; Santiago de Cali; Colombia; Tel: (+57) 2 330 91 33.

Arce, Jorge, joarce@makarenko.univalle.edu.co, Universidad del Valle; Ciudad Universitaria Melendez; Instituto de Educacion y Pedagogia; Grupo Educacion Matematica; Edificio 388 Oficina 3017; Santiago de Cali; Colombia; Tel: (+57) 2 330 91 33; Fax: (+57) 2 339 23 11; http://makarenko.univalle.edu.co/~GEM-UV/

Argün, Ziya, ziya@gazi.edu.tr, Faculty of Gazi Education, Gazi University, Teknikokullar-ANKARA, TR, (+90)5332261471, Fax: (+90) 3122028236, http://websitem.gazi.edu.tr/ziya or http://w3.gazi.edu.tr/~ziya/

Arigbabu, Abayomi Adelaja, arigbabuaa@yahoo.com , Mathematics Department, College of Science and Information Technology, Tai Solarin University of Education, P.M.B. 2118, Ijebu-Ode, Nigeria; Tel: +234 803 350 7224

Armstrong, Peter, P.K.Armstrong@lboro.ac.uk, Mathematical Sciences; Loughborough University of Technology; Loughborough; Leicestershire; LE11 3TU; Tel. 01509 222867; fax. 01509 211869; http://info.lut.ac.uk/departments/ma/Staff/peterArmstrong.html

Arnold, Pip parnold@cognitioneducation.com Cognition Education Limited, Private Bag 92617, Symonds St, Auckland 1150, New Zealand Te +64 27 626 8286

Arnold, Stephen: steve@compasstech.com.au, Compass Learning Technologies, 22 Kahibah Street, Swansea, NSW, Australia. Mobile: +61 4 0175 3834

Arsham, Hossein, harsham@ubmail.ubalt.edu, Mathematics Dept; University of Baltimore; Baltimore; MD; 21201; USA; Tel: 410 837 5268

Artigue, Michèle, artigue@mathp7.jussieu.fr, Equipe DIDIREM; case 7018; Université Paris 7 Denis Diderot; 2 place Jussieu; 75251 Paris Cedex 05; France; Tel: (33) 1 44 27 53 83; Fax: (33) 1 44 27 56 08

Arzarello, Ferdinando,ferdinando.arzarello@unito.it,Dipartimento di Matematica "G. Peano" Via Carlo Alberto 10 (10123 Torino, Italia),+393316225260

Ashlock, Daniel, _dashlock@uoguelph.ca_, Department of Mathematics and Statistics, College of Physical and Engineering Sciences, University of Guelph, Guelph Ontario Canada, N1G 2W1, Canada, (+1) 519 824 4120 x 53453, http://eldar.mathstat.uoguelph.ca/dashlock/

Askew, Mike, mike.askew@kcl.ac.uk_, Department of Education and Professional Studies; School of Social Science and Public Policy; King's College London; Franklin Wilkins Annex; Waterloo Road; London SE1 9NH; UK; (+44) (0) 207 848 3178; Fax: > (+44) (0) 207 848 3182; http://www.kcl.ac.uk/schools/sspp/education/staff/maskew.html

Asp, Gary, g.asp@edfac.unimelb.edu.au, Department of Science and Mathematics Education; University of Melbourne; Parkville 3052; AUSTRALIA; Tel: +61 3 9344 8531; Fax: + 61 3 9344 8739.

Asturias, Harold, hasturias@ncee.org, New Standards-University of California-Office of the President; 300 Lakeside Drive 4th Fl; Oakland; California 94612-3550; USA; Tel: 510-987-9490; Fax: 510-238-8475; http://www.ncee.org/

Athanasopoulou, Anna, aathanas@uncc.edu, Dep. of Mathematics & Statistics, The University of North Carolina at Charlotte, 9201 University City Blvd, Charlotte, NC 28223-0001, USA, (+1) 704-687-0624

Atregenio, Mariel T., mariel.atregenio@up.edu.ph, University of the Philippines National Institute for Science and Mathematics Education Development, Diliman, Quezon City, Philippines 1101, Tele/fax (+63)(2) 9283545.

Attorps, Iiris, ias@hig.se ,Department of Electronics, Mathematics and Natural Sciences, Faculty of Engineering and Sustainable Development, University of Gävle, SE-801 76 Gävle, Sweden.

Atweh, Bill, b.atweh@curtin.edu,au, Science and Mathematics Education Centre, Curtin University of Technology POBox U1987, Perth WA 6845, Phone: +61 (0)8 9266 7073, Fax: +61 (0)8 9266 2503, http://www.smec.curtin.edu.au/staff/atweh.cfm

Atzema, Eisso, atzema@knoware.nl, Voorstraat 43; Elm 3512 AJ; UTRECHT; The Netherlands; Tel: +31-30-331694

Augusto, Cesar, cepega@makarenko.univalle.edu.co, Universidad del Valle; Ciudad Universitaria Melendez; Instituto de Educacion y Pedagogia; Grupo Educacion Matematica; Edificio 388 Oficina 3017; Santiago de Cali; Colombia; Tel: (+57) 2 330 91 33; Fax: (+57) 2 339 23 11; http://makarenko.univalle.edu.co/~GEM-UV/

Austin, Keith K.Austin@sheffield.ac.uk, Pure Mathematics Section; School of Mathematics and Statistics; The Hicks Building; The University of Sheffield; SHEFFIELD; S3 7RH; UK: Tel: +44 (0) 114 222 3777; Fax: +44 (0)114 222 3759: http://www.shef.ac.uk/~ms/staff/austin

Austin, Pam, Pamela.austin@nmmu.ac.za Education Faculty, South Campus, Nelson Mandela Metropolitan University, PO Box 77000, Port Elizabeth, 6013, (+27) (0)41 5044360, (+27) (0)41 3685903 See Updated entry for Dorrington, Pam below

Averill, Robin, robin.averill@vuw.ac.nz, School of Education, Victoria University of Wellington, PO Box 600, Wellington, New Zealand, ph 64 4 463 9714, https://www.victoria.ac.nz/education/about/staff/robin-averill

Awad, Adnan, M., awada@ju.edu.jo, Department of Mathematics, University of Jordan, Amman 11942, Jordan, (+962) (0) 796 130 499, http://www.ju.edu.jo/faculties/FacultyofScience/Mathematics/DepartmentStaff/AllItems.aspx

Axiak, Cettina, caxi1@educ.um.edu.mt, Department of Mathematics, Science & Technical Education; Faculty of Education; University of Malta; Msida MSD 06; Malta; Tel: (356) 329 02966

Ayalew, Yenealem, yenealem.ayalew@aau.edu.et, P.O.Box 1176, Department of Science and Mathematics Education, Addis Ababa University, Addis Ababa, Ethiopia; +251 912 107077

, Emin, eaydin@marmara.edu.tr, Marmara University – Goztepe – Istanbul, Turkey http://abb.marmara.edu.tr/cv/277/emin-aydin

Babayan, Rajden, rajden.babayan@csun1.csun.edu, College of Mathematics; California State University Northridge; 18111 Nordhoff Street; California 91330; USA; Tel: (+1) 818) 677 5856

Babboni, Davide, davide.babboni@torino.alpcom.it, Via M. Coppino; 109 - 10147 Torino; Italy; Tel: 039 11 256144.

Baccaglini-Frank, Anna Ethelwyn, abaccaglinifrank@gmail.com, Padova (Italy), +393498961524, https://sites.google.com/site/abaccaglinifrank/

Baharun, Norhayati, norha603@perak.uitm.edu.my, Faculty of Computer & Mathematical Sciences, UiTM (Perak) Kampus Tapah, 35400 Tapah Road, Tapah, Perak MALAYSIA, Office Tel: (+60) (5) 406 7104 Fax: (+60) (5) 406 7712, http://scholar.google.com.my/citations?user=AEt9kvYAAAAJ&hl=en

Baker, Dave, d.a.baker@bton.ac.uk, School of Education; University of Brighton; Falmer; Sussex; BN1 9PH; UK; Tel: (44) (0)1273 643433; Fax: (44) (0)1273 643453

Baker, Nadia, risk@cam.ac.uk, Millennium Mathematics Project, University of Cambridge, Centre for Mathematical Sciences, Wilberforce Road, Cambridge, Cambridgeshire, UK, CB3 0WA, www.mmp.maths.org/risk +44 (0) 1223 764 604

Baker, Paul, pbaker@catawba.edu, Department of Mathematics, Catawba College, 2300 West Innes Street, NC 28146, USA, Tel. 704-637-4427, Fax 704-637-4422, http://www.catawba.edu/academic/math/faculty.asp

Bakker, Arthur, _a.bakker@fi.uu.nl_, Freudenthal Institute, Utrecht University, Aidadreef 12, 3506 GE Utrecht, NL, (+31) (0) 30 263 5541, http://www.fi.uu.nl/~arthur

Balacheff, Nicholas, Nicolas.Balacheff@imag.fr, Laboratoire Leibniz - Institut IMAG; 46 Avenue Félix Viallet; 38031 GRENOBLE Cedex 9; France; Tel : +33 (0)4 76 57 50 67; Fax : +33 (0)4 76 57 50; http://www-cabri.imag.fr/Preuve; http://www-cabri.imag.fr/TeleCabri

Balagtas, Marilyn, balagtas.mu@pnu.edu.ph; Philippine Normal University, Taft Avenue, Manila, 1000; 632-336-97-55

Bana, Jack, j.bana@cowan.edu.au, Edith Cowan University; Bradford St; Mt Lawley; Australia 6050; Tel: 61 9 370 6468; Fax: 61 9 370 2910

Banerjee, Bharat, Teacher's Training Department: Shri Shikshayatan College; 11, Lord Sinha Road; Calcutta 700 071; India; Tel: 242 6033

Barallobres, Gustavo, barallobres.gustavo@uqam.ca, Département d'éducation et formation spécialisées, Université du Québec à Montréal 1205, rue Saint-Denis, Montréal (Québec, Canada H2X 3R9, local N-5760. Tel. 514-987-3000 (4550). Fax (514) 987- 3430

Barbin, Evelyne, evelyne.barbin@wanadoo.fr, 122 rue des hauts-Pavés 44000 Nantes (France), (33)2 40 59 20 58

Barbosa, Jonei Cerqueira, j onei.cerqueira@ufba.br, Federal University of Bahia, Faculty of Education, Avenue Reitor Miguel Calmon, s/n, Salvador, 40000-000, BRAZIL, +557132837211, http://lattes.cnpq.br/4435435120326646

Bardini, Caroline, cbardini@math.univ-monpt2.fr, Institut de Mathématiques et de Modélisation de Montpellier (I3M), Université Montpellier II, cc 051,Place Eugène Bataillon, 34095 Montpellier Cedex 05, FR, (+33) (0) 467 144 166, Fax : (+33) (0) 467 143 558 http://ens.math.univ-montp2.fr/~bardini/HomepageBARDINI_EN.html

Barger, Rita, bargerr@umkc.edu, University of Missouri – Kansas City, Education 309, 5100 Rockhill Road, Kansas City, Missouri, 64110, Tel. +1 (816) 235 5655, Fax +1 (816) 235 5270.

Barnes, Hayley, hbarnes@gk.up.ac.za, University of Pretoria; Groenkloof campus; Leyds street; Pretoria, 0001; South Africa; Tel: +27 12 420 5505; Fax: +27 420 5723

Barnes, Mary, marysb@iprimus.com.au, 1 Little Wonga Road, Cremorne, NSW 2090 Australia, (+61) (0) 2 9908 3795

Barta, Jim, JBARTA@cc.usu.edu, Department of Elementary Education; UMC - 2805; Utah State University; Logan; Utah 84322; USA; Tel: (801) 797 0390; Fax: (801) 797 0372

Bartlett, John, bartlett@camins.camosun.bc.ca, Camosun College; 3100 Foul Bay Road; Victoria BC Canada V8P 5J2 ; Tel: 604 370 3305; FAX 604 370 3660

Bartolini-Bussi, Mariolina, Bartolini@dipmat.unimo.it, Dipartimento di Matematica; via Campi 213/B; I 41100; Moden; ITALIA; Tel. 39 59 364496; Fax. 39 59 370513

Barton, Bill, b.barton@auckland.ac.nz, Department of Mathematics; The University of Auckland; P O Box 92 019 Auckland; New Zealand; Tel: +64 9 373 7599

Barve Kiran H. , barvekh@gmail.com, Faculty Bhaskaracharya Pratishthana, Damle Path, Off Law College Road, Pune 411024.

020 - 25434547, India, +91 9423012034, +91 7040205185

Bass, Hyman, hybass@umich,edu, School of Education,University of Michigan, 610 E. University, Ann Arbor, MI 48109-1259, USA, Tel: 734-972-4357

Bautista Ballén, Mauricio mbautist@pedagogica.edu.co Universidad Pedagógica Nacional, Bogotá-Colombia, Tel: (57) 1 5941894 Ext. 222.

Beardon, Toni, toni@aims.ac.za, African Institute for Mathematical Sciences Schools Enrichment Centre (AIMSSEC), 6 Melrose Rd., Muizenberg, 7945 RSA +27 21 787 9326, +27 725 727 364, http://aimsssec.aims.ac.za

Beardon, Toni, lab11@cam.ac.uk, Millennium Mathematics Project, University of Cambridge, Wilberforce Rd., Cambridge CB30WA, +44 1223 560 582, +44 7714 357042, http://nrich.maths.org

Beauford, Judith E., beauford@uiwtx.edu, University of the Incarnate Word, 4301 Broadway, San Antonio, TX, USA, (011) 210-829-3171

Becker, Jerry, jbecker@siu.edu, Dept. of Curriculum and Instruction; Southern Illinois University; Carbondale; Illinois; 62901-4610 USA, Tel: (618) 453-4241; Fax: (618) 453-4244

Becker, Ronald, ronnie@aims.ac.za, 7 Melrose Road, Muizenberg, Cape Town, South Africa, +27839642364

Bedwell, Michael (Mike), michael_bedwell@hotmail.com, UEC Pr Peremohy 30 apt 82 Kyiv Ukraine 03055, +44 7905952672.

Beg, Ismat, ibeg@lums.edu.pk, Department of Mathematics; Lahore University of Management Sciences (LUMS); 54792-Lahore; PAKISTAN; Tel: +92-42-5722670 Ext. 2118 & 2121; Fax: +92-42-5722591; http://www.lums.edu.pk/~ibeg

Bell, Garry, gbell@scu.edu.au, Southern Cross University Faculty of Education; Lismore; Australia 2480; Tel: 61 66 203616; Fax: 61 66 221833

Bellot-Rosado, Francisco. Revista Escolar de la Olimpiada Iberoamericana de Matemáticas. http://www.oei.es/oim/revistaoim/index.html . Phone: +34670714426. e-mail: franciscobellot@gmail.com

Beltran-Joaquin, Ma. Nympha, mbjoaquin@up.edu.ph, University of the Philippines, Diliman, Quezon City, Philippines 1101.Telefax (+63)(02) 920 7815 , http://www.upd.edu.ph

Ben-Chaim, David, ntbencha@math.msu.edu, Mathematics Department; Wells Hall; Michigan State University; East Lansing; Michigan 48824; U.S.A.; Phone:+ 517 432 2870 or 517 355 5278; Fax:+ 517 432 2872 or 432 432 1562; Home: 517 355 7769

Ben-Zvi, Dani, ntdben@wiccmail.weizmann.ac.il, Weizmann Institute of Science; Science Teaching Department; P. O. Box 26; Rehovot; 76100; Israel; Tel 972 8 9342 816; Fax 972 8 9344 174.

Benningfield, Kirk, kirkb@smarthinking.com, SMARTHINKING, 1900 L Street NW, Suite 301, Washington D.C., http://www.smarthinking.com

Benson, Ian, ian.benson@cs.stanford.edu, Stanford Tizard Programme; Computer Science; Stanford University; Stanford; CA; Tel:07000 236766

Berg, Claire Vaugelade, claire.v.berg@uia.no, Department of Mathematics, Faculty of Engineering and Science, University of Agder, Kristiansand, Norway, (+47) 38 14 17 28, Fax: (+47) 38 14 10 71.

Bergem, Ole Kristian, o.k.bergem@ils.uio.no, Department of Teacher Education and School Research, Faculty of Education, University of Oslo, East wing, Physics Building, Blindern, P.O. Box 1099 Blindern, 0318 Oslo, Norway, (+47) 47293743, http://www.uv.uio.no/ils/personer/vit/olekb/

Berman, Avi, berman@technion.ac.il, Department of Mathematics, Technion – Israel Institute of Technology, Haifa 3200003, Israel, Tel:97248294101, 972584255994.

Berry, John, J.Berry@plymouth.ac.uk, Centre for Teaching Mathematics; Charles Cross Centre; University of Plymouth; Drakes Circus ; Plymouth PL4 8AA; UK; Tel: +44 (0)1752 232772; http://www.tech.plym.ac.uk/CTMHOME/CTM.HTML#jb

Berger, Margot. margot.berger@wits.ac.za, Division of Mathematics Education, School of Education, University of the Witwatersrand; P.O. Wits; Johannesburg; 2050 South Africa; Tel: +27 11 7173411 ; Fax: +27 86 5535614.

Bergqvist, Tomas, tomas.bergqvist@umu.se, Department of Applied Educational Science, Umeå University, 90187 Umeå, Sweden. (+46)907866519 https://www.umu.se/en/staff/tomas-bergqvist/

Bergsten, Christer, chber@mai.liu.se, Department of Mathematics; Linköping University; S-58183 Linköping; Sweden; Tel: +46 132 82984; Fax: +46 132 85760; http://www.mai.liu.se/~chber

Berlin, Donna F., berlin.1@osu.edu, The Ohio State University, School of Teaching and Learning, 333 Arps Hall, 1945 North High Street, Columbus, OH 43210-1172, (O) 614-292-2943, Fax: 614-292-7695

Berry, Robert Q, III, robertberry@virginia.edu, University of Virginia; School of Education; 417 Emmet Street South, Charlottesville, VA 22904 (434) 924-0767; https://curry.virginia.edu/robert-q-berry-iii and http://www.nctm.org (I am President-Elect of NCTM until April 2018; President April 2018 to April 2020)

Betts, Paul, p.betts@uwinnipeg.ca , Faculty of Education, University of Winnipeg, 515 Portage Avenue, Winnipeg, Manitoba, R3B-2E9, CANADA, Phone - 204 786 9164, Fax - 204 772 7980

Bezuidenhout, Herholdt, herholdtb@gmail.com, PostNet Suite 52 Private Bag X4 Kuils River South Africa 7580, +27769432633

Bezzina, Leonard, lbez1@educ.um.edu.mt, Department of Mathematics Science & Technical Education; Faculty of Education; University of Malta; Msida MSD 06; Malta; Tel: (356) 329 02954

Bialek, Paul, pbialek@tiu.edu, Department of Mathematics and Computer Science, Trinity International University, 2065 Half Day Rd, Deerfield IL 60015, USA, https://undergrad.tiu.edu/faculty/paul-bialek/

Bibby, John, _johnbibbyjohnbibby@gmail.com_, aa42/University of York, 1 Straylands Grove, York YO31 1EB, UK, http://maths.york.ac.uk/www/hvf

Bicknell, Brenda b.a.bicknell@massey.ac.nz, School of Curriculum and Pedagogy, College of Education, Massey University, Private Bag 11222; Palmerston North; New Zealand; Tel: +64 06 3505799 X 8862; Fax: +64 06 351 3472

Biehler, Rolf, rolf.biehler@post.uni-bielefeld.de, Institut fuer Didaktik der Mathematik (IDM); Universitaet Bielefeld; Postfach 100131; D-33501 Bielefeld; Germany; Tel: +49 - 521-106 5058; Fax: +49 - 521 106 2991

Bilinski, Robert, rbilinski@cmontmorency.qc.ca, 475 Boul. de l'Avenir, Laval, Qc, H7N-5H9, 450-975-6445

Bills, Liz, edscw@csv.warwick.ac.uk, Mathematics Education Research Centre; Institute of Education; University of Warwick; Coventry CV4 7AL; Great Britain; Tel: (+44) (0)1203 523218

Bingolbali, Erhan, bingolbali@gantep.edu.tr, Centre for the Study of Mathematics Education; School of Education, University of Gaziantep, 27310 Gaziantep/Turkey; (+90 (0) 342 317 27 80;

Bishop, Alan, alan.bishop@education.monash.edu.au, Faculty of Education; Monash University; Clayton; Victoria 3168; Australia; Tel: +61 3 9905 2772; Fax: +61 3 9905 3668

Biza, Irene, i.biza@uea.ac.uk, School of Education and Lifelong Learning, University of East Anglia, NR4 7TJ, Norwich, UK, Tel: +44 (0)1603 591741, http://www.uea.ac.uk/education/people/profile/i-biza

Bjorkqvist, Ole, objorkqv@abo.fi, Department of Teacher Education; Abo Akademi; PB 311; 65101 Vasa; Finland; Tel: +358 6 3247363; Telefax +358 6 3247320

Blanc, Paul, paulb@winchester-kac.ac.uk, Computing and Mathematics; School of Science Technology and Design; King Alfred's College of Higher Education; Winchester; SO22 4NR; UK; Tel 44 (0)1962 827379; Fax 44 (01962 827437

Blanco, Lorenzo, lblanco@unex.es, Departamento de Didactica de las Ciencias Experimenrtales y las Matematicas; Universidad de Extremadura; Avenida de Elvas s/n; 06071 Badajoz; Spain; Tel & Fax: 34 924 274463

Bleicher, Robert, r.bleicher@qut.edu.au, Centre for Mathematics and Science Education; Queensland University of Technology; Locked Bag No 2; Red Hill; Queensland 4059; Australia; Tel: +61 7 3864 3344; Fax: +61 7 3864 3985

Blohm, Jody, blohm.j@gmc.edu , Gwynedd-Mercy College, School of Education, 1325 Sumneytown Pike, Gwynedd Valley, PA, 19437,USA, 1 215 646 7300 #151

Blomhøj, Morten, blomhoej@ruc.dk , IMFUFA; NSM, Roskilde University; P.O. Box 260; DK-4000 Roskilde; DENMARK; Tel: +45 46757711 ext. 2285

Bloomfield, Alan, AlanB@chelt.ac.uk, Cheltenham & Gloucester College of Higher Education; P O Box 220; The Park; Cheltenham; Gloucestershire GL50 2QF; UK; Tel: +44 (0)1242 532870; Fax: +44 (0)1242 532710

Boaler, Jo, University of Sussex, UK

Boerst, Timothy, tboerst@umich.edu, 610 East University, University of Michigan, Ann Arbor, MI 48109-1259, USA, (734) 615-9048, http://www.soe.umich.edu/people/profile/timothy_boerst/ , http://sites.soe.umich.edu/at-practice/, http://sites.soe.umich.edu/devteam/

Boesen, Jesper, jesper.boesen@ncm.gu.se, University of Gothenburg; National Centre for Mathematics Education; NCM; Box 160; SE-405 30 Göteborg; Sweden; Tel:+46 31 786 6968; Fax: +46 31 7862200; http://ncm.gu.se

Boggs, Rex, rex@cq-pan.cqu.edu.au, Head of Mathematics; Glenmore High School; PO Box 5822; Rockhampton Mail Centre; Rockhampton; Queensland 4702; Australia; Tel: +61 07 282488; Fax: +261390; http://cq-pan.cqu.edu.au/schools/ghs/

Bohlmann, Carol, carol.bohlmann@uct.ac.za, Centre for Higher Education Research, University of Cape Town, Rondebosch, Cape Town, South Africa, (+27) (0) 44 384 1844

Boileau, Nicolas, nboilea@umich.edu, 610 East University Ave. #4213, Ann Arbor, MI, 48109-1259, USA

Bold, Christine, boldc@staff.ehche.ac.uk, Edge Hill University College; St Helen's Road ; Ormskirk; L39 4QP; UK; Tel: +44 (0)1695 584495

Bolden, David, _d.s.bolden@durham.ac.uk_, School of Education, Durham University, Leazes Road, Durham, DH1 1TA, +44 (0) 191 334 8325, Fax: +44 (0) 191 334 8311 http://www.dur.ac.uk/education/staff/?id=4886

Bollow, Norbert, bollow@math.ethz.ch, Mathematik HG; ETH Zuerich; CH-8092 Zuerich; Switzerland

Bonotto, Cinzia, bonotto@math.unipd.it, Dipartimento di Matematica Pura ed Applicata, via Trieste n.63; 35121; Padova, ITALIA; Tel. 39 49 8271451; Fax. 39 49 8271444

Borba, Marcelo de Carvalho, mborba@rc.unesp.br, Graduate Program in Mathematics Education; UNESP (State University of Sao Paulo at Rio Claro); Depto. de Educação Matemática; Av. 24A, 1515; 13506-700; Rio Claro-SP; Brazil; Tel: 55 19 35269394;

Borgato, Maria Teresa, bor@unife.it, Department of Mathematics, University of Ferrara, Via Machiavelli 35, I-44100 Ferrara, Italy, (+39) 0532 974040, Fax: (+39) 0532 974003, http://docente.unife.it/mariateresa.borgato

Borovik, Alexandre, borovik@manchester.ac.uk, School of Mathematics, University of Manchester, Oxfrod Road, Manchester M13 9PL, UK, (+44) (0) 306 3645, http://www.maths.manchester.ac.uk/~avb/

Bottino, Rosa Maria, bottino@ima.ge.cnr.it, Consiglio Nazionale delle Ricerche; Istituto per la Matematica Applicata; Via De Marini 6; 16149 GenovaItaly; Tel. +39 10 6475676; Fax: +39 10 6475660

Boylan, Mark m.s.boylan@shu.ac.uk ,Department of Teacher Education, Sheffield Institute of Education; Sheffield Hallam University; Sheffield, S1 1WB; UK; (+44) (0) 114 2256012 https://www.shu.ac.uk/about-us/our-people/staff-profiles/mark-boylan

Braathe, Hans Jørgen, HansJorgen.Braathe@lui.hio.no, Oslo University College, Faculty of Education and International Studies, Pilestredet 52, Postbox 4, St. Olavs pl. N-0130 Oslo, Norway, (+47) 22 45 21 74, Fax: (+47) 22 45 21 35

Bracke, Martin, bracke@mathematik.uni-kl.de, Technische Universität Kaiserslautern, KOMMS, Fachbereich Mathematik, Gottlieb-Daimler-Straße 48, 67663 Kaiserslautern, Germany, Tel: +49 631 205 2262, http://komms.uni-kl.de

Bragg, Leicha, leicha.bragg@deakin.edu.au, Deakin University, Faculty of Arts and Education, School of Education, 221 Burwood Highway, Burwood, Victoria, 3125, Australia, +61 3 9244 6404, http://www.deakin.edu.au/arts-ed/education/staff-directory2.php?username=lbragg

Bramald, Rod, Rod.Bramald@ncl.ac.uk, Dept of Education; University of Newcastle upon Tyne; St. Thomas St.; Newcastle upon Tyne; NE1 7RU; UK; Tel 0191 222 6534 (or 6568 for messages); Fax 0191 222 8170

Brandi, Primo, primo.brandi@gmail.com Dipartimento di Matematica e Informatica, Univ. di Perugia, via Vanvitelli, 1 06124 Perugia, Italy 0039 0755855037

Brantlinger, Andrew, amb@umd.edu, Center for Mathematics Education, College of Education, University of Maryland, College Park, MD 20742-1175, USA, (1) 773 960 3398 Fax: (1) 301 314 9589

Breen, Chris, CB@education.uct.ac.za, School of Education; University of Cape Town; Rondebosch; 7700 South Africa; Tel: (021) 650-2757; Fax: (021) 650-3489

Breiteig, Trygve, Trygve.Breiteig@uia.no, University of Agder; Serviceboks 422; N-4604 Kristiansand; Norway; Tel: +47 38 04 62 54; Fax: +47 38 14 10 71

Brew, Christine, Faculty of Education, Nipissing University, North Bay, Ontario, Canada, P1B 8L7, telephone 1-705-474-3461 extension 4044, email christineb@nipissingu.ca and Faculty of Education, La Trobe University, Victoria, Australia, 3083

Briggs, Mary, Mary.Briggs@warwick.ac.uk, Institute of Education; Mathematics Education Research Centre; University of Warwick; Coventry CV4 7AL; U.K.; Tel: 44 (0) 1203 523216; Fax: 44 (0) 1203 523237

Britt, Murray, murrays.britt@gmail.com, retired but formerly Faculty of Education, The University of Auckland, Auckland New Zealand. Now at: 35 Melrose Street, Christchurch 8013, New Zealand, 0064 (0) 3 960 0795

Britton, Sandra, sandra.britton@sydney.edu.au, School of Mathematics and Statistics, University of Sydney, NSW 2006 Australia, +61 2 9351 4077,
http://www.maths.usyd.edu.au/ut/people?who=S_Britton

Brna, Paul, P.Brna@cbl.leeds.ac.uk, Computer Based Learning Unit; Leeds University; Leeds LS2 9JT; UK; Tel: (+44) (0)113 233 4637; Fax: (+44) (0)113 233 4635; http://www.cbl.leeds.ac.uk/~paul/

Brodie, Karin, kbrodie@stanford.edu or brodiek@educ.wits.ac.za, Education Department; University of the Witwatersrand; P.O.Wits; Johannesburg; 2050 South Africa; Tel: +27 11 717 3045; Fax: 27 11 717 3067

Brombacher, Aarnout, aarnout@brombach.wcape.school.za, Westerford High School; Main Road; Rondebosch 7700; Cape Town; South Africa; Tel: +27 (0)21 -689-9154 (work); +27-(0)21- 75-6161 (home); Fax: +27-(0)21- 75-3365 (h); +27-(0)21 685 5675 (w)

Brouwer, Peter, brouweps@potsdam.edu, Secondary Education Department, SUNY College at Potsdam, 44 Pierrepont Ave., Potsdam, NY 13676 USA; Tel: 315-267-3161; Fax: 315-267-4895

Brown, David, David@mathsoul.com, Mathematics Resources Limited; PO Box 100-229 NSMC, Auckland 0745; New Zealand; Tel: 64 9 449-2244; Fax: 64 9 929 3331; http://www.mathsoul.co.uk, http://www.mathsoul.co.nz, http://www.mathsoul.com

Brown, Laurinda, Laurinda.Brown@bristol.ac.uk, University of Bristol; Graduate School of Education; 35 Berkeley Square; Bristol; BS8 1JA; UK; Tel: 44 (0)117 3314495; Home: 44 (0)117 9682809; Fax: 44 (0)117 3314414

Brown, Margaret, _margaret.brown@kcl.ac.uk_, Mathematics Education Research Group, Department of Education and Professional Studies; King's College London; Stamford Street; London SE1 9NN; UK; (+44) (0) 20 8789 4344; Fax: (+44) (0) 20 8789 4344; http://www.kcl.ac.uk/schools/sspp/education/staff/mbrown.html

Brown, Stephen, sibrown@acsu.buffalo.edu, Graduate School of Education, 431 Baldy Hall, University at Buffalo, Amherst, NY 14260; Tel: 1 716 645 2481; Fax: 1 716 645 2471

Brown, Tony, A.M.Brown@mmu.ac.uk, Manchester Metropolitan University; 799 Wilmslow Road; Didsbury; Manchester; M20 2RR; UK; Tel: 44 (0)161 247 2243; Fax 44 (0)161 247 6801

Browne, Melinda E., melinda@deckhouseschool.org, The Deck House School, 124 Deck House Road, Edgecomb, Maine 04556, USA, Tel: (207) 882-7055, Fax: (207) 882-8151, http://www.deckhouseschool.org

Browning, Christine, christine.browning@wmich.edu, Western Michigan University, Department of Mathematics, 1903 W. Michigan, Kalamazoo, MI, 49008; 269-387-4561.

Buckingham, Elizabeth, buckea@mail-b.deakin.edu.au, Faculty of Education; Deakin University Burwood Campus; 221 Burwood Highway; BURWOOD 3125; AUSTRALIA; Tel: 03 9244 6408

Buckle, Marg, marg.buckle@learningyou.com.au, Principle Consultant, LearningYou, PO Box 3 Corinda QLD 4075, Australia, PH: +61 408 031833, http://LearningYou.com.au

Budgen, Fiona, f.budgen@ecu.edu.au School of Education, Edith Cowan University, 2 Bradford Street, Mountt Lawley, Western Australia, 6050; Australia: Tel (08) 6304 6723

Buhagiar, Michael, michael.buhagiar@um.edu.mt, Department of Mathematics, Science and Technical Education, Faculty of Education, University of Malta, Msida MSD 2080, Malta. Tel: (00356)23403374

Bulla, Alexandra, alexandrabulla128@gmail.com, “una empresa docente”, Facultad de Educación, Universidad de los Andes, Bogotá, Colombia, (+571)3394949 ext. 3290, http://ued.uniandes.edu.co

Burke, Jeremy, jeremy.burke@kcl.ac.uk, Department of Education and Professional Studies; King's College London; Franklin-Wilkins Building; Waterloo Road; London SE1 9NN; Tel: +44 (0)20 7848 3855; Fax: +44 (0)20 7872 3182

Burn, Robert Pemberton (Bob), rpburn@exeter.ac.uk, Sunnyside, Barrack Road, Exeter EX2 6AB, UK. 01392 430028

Burns (Now Johnston-Wilder), Sue, _sue.johnston-wilder,@warwick.ac.uk_, Institute of Education; University of Warwick; Coventry CV4 7AL; UK; (+44) (0) 24 7652 3813; Fax: (+44) (0) 24 7652 4177; http://www2.warwick.ac.uk/fac/soc/wie/staff/teaching-research/johnston-wilders

Burrell, Marcia, M., marcia.burrell@oswego.edu, State University of New York College at Oswego, School of Education, Curriculum and Instruction Department, Wilber Hall, Oswego, New York, 13126, USA, (315)312-3584, Fax: (315)312-5446. https://ajourneytomathematics.blog/

Buteau, Chantal, cbuteau@brocku.ca, Department of Mathematics, Brock University, 500 Glenridge Avenue, St.Catharines, Ontario, CANADA, L2S 3A1, Tel: (1) 905-688-5550 x3167, Fax: (1) 905-378-5713; http://www.brocku.ca/mathematics/people/buteau/

Butler, Douglas, debutler@argonet.co.uk, iCT Training Centre (Oundle); PO Box 46; Oundle; Peterborough PE8 4EJ; UK; Tel: (+44) (0) 1832 273444; Fax: (+44) (0) 1832 273529, http://www.tsm-resources.com

Cabrita, Isabel, icabrita@ua.pt, Dep. of Education and Psychology, University of Aveiro, 3810-193 Aveiro, Portugal, 00351.234272417, https://orcid.org/0000-0003-0255-7577

Calder, Nigel, n.calder@waikato.ac.nz, Mathematics, Science and Technology Education, School of Education, University of Waikato, Private Bag 12027, Tauranga, NZ, (p) +64 7 5770620 Ext 7512, (f) +64 7 5775327

Calhoun, Charles, edu5077@uabdpo.dpo.uab.edu, School of Education; The University of Alabama at Birmingham; 901 13th Street South; Birmingham; Alabama 35294-1250; USA; TEL: (205) 934-5371; Fax: (205) 934-4792

Callahan (Howell), Kadian M, kmcallahan@kennesaw.edu , Kennesaw State University, 275 Kennesaw State University Rd., NW, MD 1102, Kennesaw, GA 30144, USA, 470-578-2492

Camacho, Matías, mcamacho@ull.es. Departamento de Análisis Matemático, Universidad de La Laguna, Avda. Francisco Sánchez, s/n, 38271 La Laguna S/C de Tenerife, Canary Islands, Spain. Phone 34 922318203.

Camargo Uribe, Leonor, lcamargo@pedagogica.edu.co, Universidad Pedagógica Nacional, Bogotá-Colombia, Tel: (57) 1 5941894 Ext. 254.

Camou Font, Bernardo, bercamou@uga.edu, Liceo 10 Dr Carlos Vaz Ferreira, Mataojo 1862, Scuola Italiana, Montevideo, Uruguay (+598) (2) 6192600.

Campbell, Patricia F, patc@umd.edu , Center for Mathematics Education, Department of Curriculum and Instruction, University of Maryland, College Park, MD 20742-1175 (1) 301 405 3129 Fax: (1) 301 314 9589

Campbell, Stephen, sencael@sfu.ca Simon Fraser University; Faculty of Education; 888 University Drive; Burnaby; British Columbia V5A 1S6; Canada; Tel: (604) 291-3630; Fax: (604) 291-3203

Cañadas, María C., mconsu@ugr.es, Departamento de Didáctica de la Matemática; Facultad de Ciencias de la Educación; Universidad de Granada; Campus de la Cartuja s/n; 18071 Granada; Spain

Cann, Brian, bcann@faculty.ed.umuc.edu, Brian G. Cann; MASC; University of Maryland European Division; Im Bosseldorn 30; 69126 Heidelberg; Germany

Cappetta, Robert, cappetta@cdnet.cod.edu, College of DuPage; 22nd and Lambert; Glen Ellyn; Illinois; USA 60137; Tel: (708) 942 2182

Capraro, Mary Margaret , mmcapraro@tamu.edu, Texas A & M University, 4232 TAMU, College Station, TX, USA 77843-4232, 979-845-3013, Fax: 979-845-9663, http://directory.cehd.tamu.edu/view.epl?nid=mmcapraro

Capraro, Robert M., rcapraro@tamu.edu, Texas A & M University, 4232 TAMU, College Station, TX 77843-4232, 979-845-8227, Fax: 979-845-9663, http://www.coe.tamu.edu/~rcapraro

Carlsen, Martin, martin.carlsen@uia.no, Gimlemoen 25J, Serviceboks 422, 4604 Kristiansand, N, (+47)38141659, (+47)38141701

Cassibba, Roberto, Universidad Nacional de 3 de Febrero, rocassibba@yahoo.com.ar , Doblas 352, Piso 5, departamento A, CABA, CP1424, Republica Argentina, (011)-915-6512-4027.

Castrillon, Gloria, glocast@makarenko.univalle.edu.co, Universidad del Valle; Ciudad Universitaria Melendez; Instituto de Educacion y Pedagogia; Grupo Educacion Matematica; Edificio 388 Oficina 3017; Santiago de Cali; Colombia; Tel: (+57) 2 330 91 33; Fax: (+57) 2 339 23 11; http://makarenko.univalle.edu.co/~GEM-UV/

Castro, Encarnación; encastro@ugr.es; Universidad de Granada, Dpto. Didáctica de la Matemática, Facultad de CC. de la Educación, Campus de Cartuja s/n, 18071, Granada, Spain; Phone (+34)958243952; Fax: (+34)958246359

Castro, Mauricio, mcastro@zeus.uniandes.edu.co, una empresa docente; Universidad de los Andes; Apartado Aereo 4976; Bogota; Colombia; Tel: 284-9911 Ext 2717; Fax: 235-1726 / 284-1890

Castro, Paola, dp.castro116@uniandes.edu.co, “una empresa docente”, Facultad de Educación, Universidad de los Andes, Bogotá, Colombia, (+571) 3394949 ext. 3290, http://ued.uniandes.edu.co.

Castro-Gordillo, Walter F. , wfcastro82@gmail.com, calle 30A 83-25 apto 17-01 Medellin, Colombia, +57-4-3427171; +57-3148502915

Castro Superfine, Alison, amcastro@uic.edu, University of Illinois at Chicago & Learning Sciences Research Institute, 851 S. Morgan St. Chicago IL 60612, USA, (312) 413-8029

Cavanagh, Michael, michael.cavanagh@mq.edu.au, School of Education, Macquarie University, North Ryde 2109, NSW, Australia, (+61) (2) 9850 8239, Fax: (+61) (2) 9850 8674, http://www.educ.mq.edu.au/staff.aspx?sid=292

Cavicchi, Veronica, cveronic@gmail.com, Liceo Scientifico di Stato "N. Copernico", viale Duca degli Abruzzi 17, 25124 Brescia, Italy, +39 3381341515, https://www.linkedin.com/in/veronica-cavicchi 65442034/; http://www.liceocopernicobrescia.gov.it/; http://www.aracneeditrice.it/index.php/pubblicazione.html?item=9788854894877

Cawley, Anne, acawley@cpp.edu, California State Polytechnic University, Pomona, 3801 W. Temple Ave., Pomona, CA 91768, USA, 909-869-3487

Cestari, Maria Luiza, maria.l.cestari@uia.no, University of Agder, Mathematical Sciences, Post box 422, NO-4604 Kristiansand, Norway, Tel. +47 3814 1537, Fax +47 3814 1071

Chahine, Iman C., ichahine@gsu.edu, Department of Middle and Secondary Education, College of Education, Georgia State University, P.O. Box 3979, Atlanta, GA, USA 30302-3978, 404-413-8407

Chakalisa, Paul, chakalis@mopipi.ub.bw, Department of Mathematics and Science Education, University of Botswana, Private Bag 0022, Gaborone Botswana, (+267 355 2175, Fax: +267 3185096)

Chan, Robert PK, r.chan@auckland.ac.nz, Department of Mathematics, The University of Auckland, P.O. Box 92019 Auckland, New Zealand, Tel. +64 9 3737599 ext. 85212.

Chapman, Anne, achapman@ecel.uwa.edu.au, The University of Western Australia; Nedlands WA 6009; Australia; Tel: 0011 09 380 3838 ext 2387; Fax: 619 380 1052

Chassapis, Dimitris, dchasapis@ecd.uoa.gr, Faculty of Early Childhood Education; University of Athens; Ippokratous 35; GR- 106 80 Athens; Greece, Tel. +0030 210 36.88.519 Fax +0030 210 36.88.510

Chazan, Daniel, dchazan@umd.edu, Center for Mathematics Education, University of Maryland, 2226 Benjamin Buidling, College Park, MD 20742, (+1) 301 405 8539, Fax: (+1) 301 314 9055, http://education.umd.edu/EDCI/MathEd/info/dchazan.htm

Chia, Josephine, Njie, jcchia2003@yahoo.com, TRC, P.O. box 2183, Bamenda, Cameroon, (+237) 33 05 14 54

Chiappetta, Carrie, Carrichip@aol.com, Stamford Public Schools, 888 Washington Boulevard, 5th Floor, Stamford, CT 06904 USA, work phone (001) 203-977-4633, (001) 203-353-1213

Chick, Helen, Helen.Chick@utas.edu.au, Faculty of Education, University of Tasmania, Private Bag 66, Hobart, Tasmania, 7001, Australia, (+61 3) 6226 7220, Fax: (+61 3) 6226 2570, http://www.utas.edu.au/education/people/Helen-Chick

CHIPETA, Brave, bravechipeta@gmail.com, Police Compus, C-Company, P.O Box 412, Lilongwe, Malawi

Chissick, Naomi, nchissic@ort.org.il, Ort Colleges & Schools for Advanced Technologies & Sciences; P.O.Box 25203, Tel-Aviv 61251, Israel; Tel: 972 3 6301357; Fax: 972 36301366

Choppin, Jeffrey; jchoppin@warner.rochester.edu; Warner Graduate School of Education; University of Rochester; Box 270425, Rochester, NY 14627; US; (011) 585 273 4913;http://it.warner.rochester.edu/content/facultystaff/directory.php?url=choppin

Choudhary, Renu, rchoudhary@unitec.ac.nz, Te Puna Ako Learning Centre; Unitec; Private Bag 92025; Auckland; New Zealand; 64 9 815 4321 Ext. 8698

Christiansen, Andreas, andreas.christiansen@hsh.no, Stord/Haugesund University College, Faculty of Teacher and Cultural Education, Klingenbergvegen 8, N-5414 Stord, Norway, +47 9768 5503, www.hsh.no/home/ac

Christiansen, Iben, hippo@iesd.auc.dk, Department of Mathematics; Institute for Electronic Systems; Aalborg University; Fredrik Bajersvej 7E; DK-9220 Aalborg O; Denmark; Tel: (+45) 98 15 85 22 ext 5028; Telefax: (+45) 98 15 81 29; http://www.iesd.auc.dk/~hippo

Chronaki, Anna, edpagc@bath.ac.uk, School of Education; University of Bath; Bath; BA2 7AY; Avon; UK; Tel: 44 (0)1225 826673 and 826214

Chua, Yin Hsiang, Ian, ian@acelearn.com, ichua@fas.harvard.edu; ACE-Learning Systems Pte Ltd; #06-95 Ubi Techpark Lobby E, 10 Ubi Crescent, Singapore 408564; Tel: (65)-90603398.

Cifarelli, Victor, vvcifare@uncc.edu, Dept. of Mathematics & Statistics; 9201 University City Blvd.; The University of North Carolina at Charlotte; Charlotte, NC 28223-0001; USA; Tel: 704-687-4579

Civil, Marta, civil@math.arizona.edu, Department of Mathematics ; University of Arizona; Tucson; Arizona 85721; USA; Tel: (520)621-6873

Clarke, David, d.clarke@edfac.unimelb.edu.au, Department of Science and Mathematics Education; Faculty of Education; University of Melbourne; Parkville; Victoria 3052; Australia; Tel: +61 3 9344 8511; Fax: +61 3 9347 9341

Clarke, Doug, doug.clarke@acu.edu.au, Mathematics Teaching and Learning Research Centre, Australian Catholic University (Melbourne Campus); 115 Victoria Parade, Fitzroy VIC 3065; Australia; Tel: 011 613 9953 3287; Fax: 011 613 9953 3535

Clarkson, Philip, Philip.Clarkson@acu.edu.au, Faculty of Education, Australian Catholic University, Locked bag 4115 Fitzroy, Victoria 3065, Australia, 61 3 9953 3269, FAX 61 3 9953 3372, http://dlibrary.acu.edu.au/staffhome/phclarkson/

Clark-Wilson, Alison, a.clark-wilson@ucl.ac.uk, UCL Knowledge Lab, UCL Institute of Education, 23-29 Emerald Street, London WC1N 3QS, United Kingdom, +44 (0)20 7907 4644, https://iris.ucl.ac.uk/iris/browse/profile?upi=ACLAR76

Cochran, Delaine, dcochran@ius.indiana.edu, The Mathematics Resource Laboratory; Indiana University; Southeast New Albany; IN 47150; USA; Tel: 812-941-2605; Fax: 812-941-2637

Cockburn, Anne, a.cockburn@uea.ac.uk, School of Education, University of East Anglia; Norwich NR4 7TJ; UK; Tel: 01603 592644; Fax: 01603 593446

Codina, A., acodina@ual.es, Departamento de Didáctica de la Matemática y de las Ciencias Experimentales; Facultad de Ciencias de la Educación; Universidad de Almería; Ctra. de Sacramento; s/n; 04120; La Cañada de San Urbano; Almería; Spain; Tel: 34 (9) 50 01 54 98; Fax: 34 (9) 50 01 57 51

Cohen, Don, mailto:mathman@shout.net, The Math Program; 809 Stratford Dr. Champaign; Ilinois 61821-4140; USA; Tel: 1 217 356 4555; Fax: 1 217 356 4593: http://www.shout.net/~mathman

Cohen, Nitsa, nitza_nm@netvision.net.il, David Yellin College of Education, Jerusalem, Israel, tel: 972-2-6795850, 972-54-8110105

Coles, Alf, alf.coles@bris.ac.uk, Graduate School of Education, University of Bristol, 35 Berkeley Square, Bristol BS8 1DA, UK, (+44) (0) 117 928 9000, Fax: (+44) (0) 925 1537, <http://www.bris.ac.uk/contact/person/getDetails?personKey=24045>

Comiti, Claude, Claude.Comiti@imag.fr, Equipe de Didactique des Mathématiques; Laboratoire Leibniz (bureau C216); 46 Avenue Felix Viallet; 38031 Grenoble Cedex 01; France; Tel: (33) 76 57 48 76; Fa : (33) 76 57 46 02; http://leibniz.imag.fr/DDM/comiti.html

Connolly, Cornelia , cornelia.connolly@nuigalway.ie, School of Education, National University of Ireland Galway, Ireland. +353 (0)91 492369, www.nuigalway.ie/our-research/people/education/corneliaconnolly

Cooke, Charles, tezcc@ten2.educ.nottingham.ac.uk, School of Education; Nottingham University; University Park; Nottingham; NG7 2RD; UK; Tel 44 (0)115 951 4518; Fax: 44 (0)115 979 1506

Cooley, Laurel, LCooley@brooklyn.cuny.edu, Department of Mathematics, Brooklyn College, City University of New York, 2900 Bedford Avenue, Brooklyn, NY 11210, USA, http://alturl.com/apxo5

Cooper, Barry, barry.cooper@durham.ac.uk, School of Education; University of Durham; Leazes Rd; Durham; DH1 1TA; UK; Tel: +44 (0)191 374 3545; http://www.dur.ac.uk/~ded0bc

Cooper, Mike, m.r.cooper@hull.ac.uk , Centre for Educational Studies, Faculty of Education, University of Hull, Hull, HU6 7RX, 01482 466197, http://www2.hull.ac.uk/ifl/ces/staff/mike_cooper.aspx

Cooper, Tom, tj.cooper@qut.edu.au, YuMi Deadly Centre, Queensland University of Technology, Victoria Park Road, Kelvin Grove, Queensland 4059, Australia, +61 7 3138 3331, https://research.qut.edu.au/ydc/

Coombe, Jane, JC@education.uct.ac.za, Mathematics Education Project; School of Education; University of Cape Town; Rondebosch 7700; South Africa; Phone 021 - 650 3368/2761; Fax 021 - 650 3489

Cooney, Thomas, tcooney@coe.uga.edu, Department of Mathematics Education; University of Georgia; 105 Aderhold Hall; Athens; Georgia 30602; USA; Tel: 706 542 4194; Fax: 706 542 4551

Copes, Larry, copes@aug1.augsburg.edu, Department of Mathematics; Augsburg College; Campus Box 41; Minneapolis; MN 55454; USA; Tel: 612/330-1064

Cotton, Tony, tony.cotton@ntu.ac.uk, School of Education, Nottingham Trent University, Ada Byron King Building, Clifton Cakmpus, Clifton, Nottingham, NG? ???; Tel: 44 (0)115 9??? ????

Coupland, Mary, mary.coupland@uts.edu.au, Dept of Mathematical Sciences, University of Technology, Sydney, PO Box 123, Broadway, NSW 2007, Australia. phone (02) 9514 2241

Cramp, Sue, s.cramp@uea.ac.uk, School of Education, University of East Anglia; Norwich NR4 7TJ; UK; Tel: 01603 593677; Fax: 01603 593446

Creasor, Claire, claire.creasor@edgehill.ac.uk Department of Mathematics, Edge Hill University, St Helens Road, Ormskirk, Lancs L39 4QP, (+44) (0) 1695 584402

Crisan, Cosette, C.Crisan@ioe.ac.uk, Institute of Education, London, 20 Bedford Way, London WC1H 0AL, UK; 20 Bedford Way, London WC1H 0AL;Tel: +44 (0)207 612 5471

Croft, Tony, a.c.croft@lboro.ac.uk , Mathematics Education Centre, Loughborough University, LE11 3TU, UK, (+44)(0) 1509 223185, http://mec.lboro.ac.uk/pages/people/acc.html

Cronjé, Fienie, 163lsc@cosmos.wits.ac.za ,PO Box 405, Florida Hills, 1716 South Africa; Tel: +27 11 716 8040; Fax: +27 11 339 1054

Cruz, Miguel, miguel@isphlg.rimed.cu, Instituto Superior Pedagógico de Holguín; Centro de Estudios de la Educación; Avenida de los Libertadores, km 3.5, Holguín 81000, CUBA

Curmi, Francis, francis.curmi@um.edu.mt, Department of Mathematics; Junior College; University of Malta; Msida MSD 10; Malta. Tel: (356) 2590 7254

Cutting, Chelsea, chelsea.cutting@unisa.edu.au, The University of South Australia; Mount Gambier; Australia; Tel: +61 08 87218906, http://people.unisa.edu.au/Chelsea.Cutting

D'Ambrosio, Beatriz, bdambro@iupui.edu, IUPUI, School of Educatio; 902 West New York St; Indianapolis, IN 46202, USA; Tel: (317) 274-6833: Fax: (317) 274-6864

D'Ambrosio, Ubiratan, ubi@usp.br Graduate Program in Mathematics Education, UNIAN/Universidade Anhanguera de São Paulo, Av. Raimundo

Pereira de Magalhâes 3305, São Paulo SP, 55-11-3088.0266 ALSO Graduate Program in Mathematics Education, Department of Mathematics

Education, Universidade Estadual Paulista - Unesp. Av 24A, 1515, 13506-900 Rio Claro-SP, Brazil, +55-19-35269391.

D’Amore, Bruno, bruno.damore@unibo.it, Universidad Distrital Francisco José de Caldas, Bogotà, Colombia, Tel: (57) 1 6126767

Dance, Rosalie A., rdance@uvi.edu , Department of Mathematics, Division of Science and Mathematics, University of the Virgin Islands, St. Thomas, USVI (United States Virgin Islands) 00802, Phone: 340-693-1253, Fax: 340-693-1245

Daniel, Coralie, cdaniel@maths.otago.ac.nz", Department of Mathematics and Statistics; University of Otago; Box 56 ; Dunedin; New Zealand; Tel: +64 03 479 7889; Fax: +64 03 479 8427

D'Arcy-Warmington, Anne, anne@statistica.com.au, Mathematics and Statistics Department, Curtin University of Technology, GPO Box U1987 Perth, Western Australia, 6845 Tel: +61 8 9266 3489 Fax: +61 8 9266 3197, http://maths.curtin.edu.au/staff/anne.cfm

Darragh, Lisa, l.darragh@auckland.ac.nz, University of Auckland; Faculty of Education and Social Work; Curriculum and pedagogy; Private Bag 92019; Auckland; New Zealand; Tel: +64 6238899 x48632

Davis, Edward, edavis@coe.uga.edu, Department of,Mathematics Education; University of Georgia; 105 Aderhold Hall; Athens; Georgia 30602; USA; Tel: 706 542 4194; Fax: 706 542 4551

Davis, Gary, gdavis@umassd.edu, Dept. of Mathematics; University of Massachusetts Dartmouth; Dartmouth; MA 02747 2300; USA; Tel: (508) 910-6917 ; Fax: (508) 999-8901

Davis, Jon D. , jon.davis@wmich.edu, Department of Mathematics, College of Arts and Sciences, Western Michigan University, 1903 W. Michigan Avenue, Kalamazoo, MI 49008-5248, USA, Voice: +1-269-387-4591, Fax: +1-269-387-4530

Davis, Zain, zd@education.uct.ac.za, School of Education; University of Cape Town; Private Bag; Rondebosch 7701; South Africa; Tel (021) 650 2775; Fax (021) 650 3489

Dawkins, Paul, dawkins@math.niu.edu, Northern Illinois University, Department of Mathematical Sciences Watson 320, DeKalb, IL 60115, USA, (815)753-6755

Dawson, A. J. (Sandy), dawsona@hawaii.edu,Institute for Teacher Education, College of Education, University of Hawaii-Manoa,1551 Ala Wai Blvd., #1503, (1) 808 956 4410, Fax: (1) 08 956 7191

Day, Lorraine, Lorraine.Day@nd.edu.au, School of Education, University of Notre Dame Australia, PO Box 1225, Fremantle, WA 6959, Tel: +61 8 9433 0163, Fax: +61 8 9433 0160.

Day, Roger, day@math.ilstu.edu, Mathematics Department; Illinois State University; Normal IL 61790-4520; USA; Tel: (309) 438-7096; Fax: (309) 438-5866; http://www.math.ilstu.edu/~day

De Beer, Therine, therine@malati.wcape.school.za, Mathematics Learning and Teaching Initiative; P.O. Box 647; Bellville;7535 South Africa; Tel: +27 21 948 6644; Fax: +27 21 (out of teaching - information from Alwyn Olivier)

DeBlois, Lucie, lucie.deblois@fse.ulaval.ca, Faculté des sciences de l’éducation, 2320 rue des Bibliothèques, Local 1222, Université Laval, Québec, (Québec), Canada, G1V 0A6 ; (+1) (418) 656-2131 #3727 ; Fax: (+1) (418) 656-7770 ; http://www.fse.ulaval.ca/ldeblois

DeFranco, Thomas, tom.defranco@uconn.edu, Neag School of Education & Department of Mathematics, University of Connecticut, Storrs, CT, 06269, USA, 860-486-3815

De Geest, Els, e.n.f.degeest@open.ac.uk, Centre for Mathematics Education, Department of Mathematics and Statistics, The Open University, Walton Hall, Milton Keynes, MK7 6AA, (+44) (0) 1908 653550, http://www.mathematics.open.ac.uk/People/e.n.f.degeest

De La Cruz, Yolanda, delacruz@merle.acns.nwu.edu, Northwestern University; Education & Social Policy; 2115 N Campus Road; Evanston IL 60208-2610; USA; Tel: 708 467-2352; Fax: 708 491-8999

de la Cueva, Fernando, fcueva@aragon.es, Clara Campoamor, 30, 2º D, Zaragoza 50018 (ESPAÑA), +34 976730923, “Taller de Talento Matemático"(TTM) http://www.unizar.es/ttm/

de la Oliva, Mercedes, m deoliva@gmail.com, Departamento de Matemáticas; Universidad Metropolitana; Distribuidor Metropolitana, Terrazas del Ávila; 1070 Caracas; Venezuela; Tel: +58 02129796717, +4241173841.

Delgado-García, César Augusto, cedelg@gmail.com, Universidad del Valle, Cali-Colombia

Delice, Ali, alidelice@marmara.edu.tr and alimdelice@yahoo.co.uk Department of Mathematics Education; Faculty of Ataturk Education, Marmara University , Goztepe Campus 34722, Kadikoy/ISTANBUL, TURKEY, Tlf: +(90) 216 3459090 External:151, Fax: +(90) 216 3388060

Della Giovampaola, Lucia, sto.lucia@gmail.com, via Ottavio Maestri, 49, 53049 Tortita di Siena (SI), Italia, 3476714182

De Lucca, Adriana Carla, adridel2003@yahoo.com.ar, Maria Curie 117, Río Grande, Tierra del Fuego, Argentina, 54-2964-425786

Dennis, Lynnclaire, LDennis@Mereon.org, Belonging as LifeLong Learning, Calle Valentunana 2, 8 Iz., Marbella, 29601, Spain 29601 +34675356466, www. mereon.org

Denny, Helen, helen.denny@sihe.ac.uk , Centre for Research in Education; School of Education; Swansea Institute of Higher Education; Townhill Road; Swansea SA2 0UT; Tel: 01792 4 82135

de Pomerai, Sue, suedepomerai@furthermaths.org.uk, Further Mathematics Support Programme, MEI, Monckton House, White Horse Business Park, Trowbridge, Wiltshire BA14 0XG, UK, (+44) (0) 1225 774777, http://www.furthermaths.org.uk

Deshler, Jessica, jmdeshler@mail.wvu.edu, 320 Armstrong Hall, PO Box 6310, Department of Mathematics, West Virginia University, Morgantown, West Virginia, 26505, USA, 304-293-8939, www.math.wvu.edu/~deshler

Desigaux, Martine, desigaux@grenet.fr, Mathematiques; College Jules Flandrin; 66 avenue du Gresivaudan; 38700 Corenc; FRANCE; Tel : (33) 76 90 64 90 (work); Fax: (33) 76 41 09 57; Home: (33) 76 40 29 14

de Villiers, Michael, profmd@mweb.co.za, University of KwaZulu-Natal (retired); Uiniversity of Stellenbosch ( Honorary Professor); 32 Belfry Towers, 39 Beach Rd, Doonside, 4141. Tel: 027-(0)31-9035109 (h).

Dhakal, Durga Prasad, durgadhakal@kusoed.edu.np, V.Faculty, Kathmandu University School of Education, Hattiban, Lalitpur, Nepal, +977 9849995540.

Dick, Thomas, tpdick@math.oregonstate.edu, 2000 SW Campus Way, Mathematics Department, Oregon State University, Corvallis, OR 97331, USA, 541 737 1570

Dietiker, Leslie, dietiker@bu.edu, Two Silber Way #703, School of Education, Boston University, Boston, MA 02215, +01-781-281-4443, https://www.bu.edu/sed/profile/leslie-dietiker/

Dindyal, Jaguthsing, jaguthsing.dindyal@nie.edu.sg, Mathematics & Mathematics Education, NIE7-03-39, 1 Nanyang Walk, Nanyang Technological University, Singapore, 637616, Tel: (65) 67903906, Fax: (65) 68969417

Doerr, Helen, hmdoerr@sued.syr.edu, Mathematics & Mathematics Education; 215 Carnegie Hall; Syracuse University; Syracus; NY 13244-1150; USA; Phone: 315-443-1485; Fax: 315-443-1475

Doig, Brian, doig@acer.edu.au, The Australian Council for Educational Research; Private Bag 55; Camberwell; Victoria 3124; Australia; Tel: +61 (03) 9277-5571; Fax: +61 (03) 9277-5500

Dole, Shelley, s.dole@qut.edu.au, Centre for Mathematics and Science Education; Queensland University of Technology; Locked Bag No.2; RED HILL 40; Queensland; Australia; TEL + 617 7 3864 3331; Fax + 617 7 3864 3643

Donaldson, Gina, gina.donaldson@canterbury.ac.uk, Canterbury Christ Church University, North Holmes Road, Canterbury, Kent, CT1 1QU, UK, 01227 782176

Dorrington, Pam, pama7088@gmail.com, 27 Summerwood Way, Pinehurst, Durbanville, Cape Town 7550, South Africa.

dos Santos, Madalena Pinto ; Centro de Investigação em Educação - Instituto de Educação, Universdade de Lisbon; Campo Grande, C6; 1700 Lisboa; Portugal; Tel:351-1-7500155; mpsantos@fc.ul.pt <mailto:mpsantos@fc.ul.pt>

Dowsey, John, j.dowsey@edfac.unimelb.edu.au, Department of Science and Mathematics Education; University of Melbourne; Parkville 3052; AUSTRALIA; Tel: +61 3 9344 8531; Fax: + 61 3 9344 8739.

Drageset, Ove Gunnar, ove.drageset@uit.no, University of Tromsoe, ILP, Mellomveien 110, 9293 Tromsoe, +4777660274

Drake, Pat. p.drake@sussex.ac.uk School of Education and Social Work, University of Sussex, Falmer, Brighton BN1 9QQ UK T: +44 (0) 1273 877043 <http://www.sussex.ac.uk/profiles/754>

Dray, Tevian, tevian@math.oregonstate.edu, Department of Mathematics, Oregon State University, Corvallis, OR, 97331, USA; Tel: +1 541 737-5159; http://www.math.oregonstate.edu/~tevian, http://www.math.oregonstate.edu/bridge

Dreyfus, Tommy, tommyd@post.tau.ac.il, Department of Mathematics Science and Technology Education, School of Education, Tel Aviv University, Ramat Aviv, Tel Aviv 69978, Israel, (+972) (0) 3 640 8494, Fax: (+972) (0) 3 640 5068, http://education.tau.ac.il/manage.asp?siteID=42&PageID=3605&Lang=1

Driasma, Jan, j-f.draisma@teledata.mz,

Drijvers, Paul, p.drijvers@uu.nl, Princetonplein 5 Office 365 3584 CC Utrecht the Netherlands, +31 30 253 5668, https://www.uu.nl/medewerkers/PHMDrijvers/0

Drouhard, Jean-Philippe, Jean-Philippe.Drouhard@unice.fr, IUFM Célestin Freinet, Université de Nice Sophia Antipolis, 89 av George-V; 06046 NICE Cedex 1; FRANCE; Tel: +33 6 60 64 47 50; http://sites.google.com/site/jeanphilippedrouhard

Duah, Francis Kwaku, f.k.duah@lboro.ac.uk, Mathematics Education Centre, Department of Mathematical Sciences, Loughborough University, Loughborough, Leicestershire LE11 3TU, UK, (+44) (0) 1509 228212, http://mec.lboro.ac.uk/pages/people/fkd.html

Dubinsky, Ed, edd@math.kent.edu, 651 Raven Ave, Miami Springs, FL 33166, USA, 513-265-1437, http://www.math.kent.edu/~edd/

Dumitrascu, Stelian, dumitras@tim1.uvt.ro, Faculty of Mathematics; University of Timisoara; Bul. V.Parvan 4; 1900 Timisoara; Romania; Tel: +00 40 190009; http://w3.info.uvt.ro/~math/Dumitrascu/

Dunn, Sylvia, dunns@staff.ehche.ac.uk, Mathematics Department; Edge Hill University College; St Helens Road; Ormskirk; Lancashire L39 4QP; U. K.; Tel: (+44) (0)169 558 4403; Fax: (+44) (0)169 558 4486

Dunn, Thea Educational Ventures International Foundation, Boerne TX 78006 educationalventures@yahoo.com

du Preez, Jeanetta, jeanetta.dupreez@up.ac.za, Academic Development, School of Engineering, University of Pretoria, Main Campus, Pretoria, RSA, (+27) (0) 12 420 3799

Dupuis, Claire, dupuis@math.u-strasbg.fr, Institut de Recherche sur l'Enseignement des mathematiques; 10 rue du General Zimmer; F-67 084 STRASBOURG CEDEX; FRANCE; Tel 33 88 41 63 13; Fax 33 88 41 64 49

du Toit, Gawie, opgt@opv.unos.ac.za, Department of Didactics; Free State University; PO Box 339; 9300 Bloemfontein; South Africa; Tel: +27 51 401 2639; Fax: +27 51 421 4462

Eaton, Patricia, p.eaton@stran.ac.uk, Stranmillis University College, Belfast, BT9 5DY UK, (+44) (0) 2890 384445, Fax: (+44) (0) 2890 664423, http://www.stran.ac.uk/PHP/penportraits/showstaff2.php?staffid=80&editing

Edwards, Ann Ryu, aedwards@umd.edu, 2226K Benjamin Building, University of Maryland, College Park, MD, 20742, USA, Tel: 301-405-6343

Edwards, Julie-Ann, j.s.edwards@soton.ac.uk, University of Southampton School of Education; Highfield; Southampton; SO17 1BJ; UK; Tel: +44 (0)23 8059 7636 http://www.crme.soton.ac.uk

Edwards, Laurie, ledwards@stmarys-ca.edu, Saint Mary's College of California, Tel (925) 631-8031; Fax: (925) 376-8379

Eisenberg, Ted,. eisenbt@013.net.il , Department of Mathematics, Ben-Gurion University, POB 653, Beer-Sheva, Israel, Tel: 972-8-6460-302

Ellemor-Collins, David, davidec.email@gmail.com, School of Education, Southern Cross University, NSW 2480 Australia, +61 2 6688 6498

El Mouhayar, Rabih, re29@aub.edu.lb, P.O. Box 11-0236, Beirut, Lebanon, Phone: 00961-1-350000

Emanuelsson, Jonas, Jonas.Emanuelsson@ped.gu.se, Department of Education; Gothenburg University; Box 300; SE- 405 30 Göteborg; Sweden; Tel: +46 31 773 2265

Enfedaque, Jesus, j.enfedaque@ub.edu, Dpt de Didactica de las CCEE y de las Matematicas, Universitat de Barcelona, Passeig de la Vall d'Hebron, 171, 08035 Barcelona; Spain; Tel: 34 (9)3 4035033; Fax: 34 (9)3 4035013

Engelbrecht, Johann, johann.engelbrecht@up.ac.za, Department of Sicence, Mathematics & Technology Education; Faculty of Education; University of Pretoria; 0002 Pretoria; South Africa; Tel:+27 12 4202883 (office); Mobile: +27 72 1496757

English, Lyn, l.english@qut.edu.au, Centre for Mathematics and Science Education; Queensland University of Technology; Locked Bag No 2; RED HILL 405; Queensland; Australia; Tel + 617 7 3864 3786; Fax +617 7 3864 3643

Engström, Arne, arne.engstrom@kau.se, Department of Mathematics; Faculty of Technology and Science; Karlstad University; SE-651 88 KARLSTAD; Sweden; Tel: (+46) (0) 54 700 2467; Fax: (+46) (0) 54 700 1851

Ensor, Paula, pe@education.uct.ac.za, School of Education; University of Cape Town; Rondebosch 7700; South Africa; Tel: +27 221 650 +2774; Fax: +27 21 650 3489

Epstein, Jerome, jerepst@att.net, Polytechnic University, 718-429-3437, New York, USA

Erfjord, Ingvald, Ingvald.Erfjord@uia.no, University of Agder, Serviceboks 422, N-4604 Kristiansand, Norway, (+47) 38 14 15 47, Fax: (+47) 38 14 10 71

Ernest, Paul, _p.ernest@ex.ac.uk_, Graduate School of Education, University of Exeter, St Lukes Campus, Heavitree Road, Exeter EX1 2LU, UK, (+44) (0) 1392 264796, http://www.people.ex.ac.uk/PErnest/

Escalante, Ricardo, cybergordo@cantv.net, Departamento de Ciencias; Colegio Manuel Munoz-Tebar; Calle Mosensol; Centro Mosensal - El Marques; 1070 Caracas; Venezuela; Tel: 058 02 238 5152; Fax 058 02 241 8538

Essien, A. Anthony, anthony.essien@wits.ac.za School of Education; University of the Witwatersrand, P. O. Box 453, Wits, 2050, South Africa. Tel: +27117173408; Fax: +27865186392

Estepa, Antonio, aestepa@ujaen.es, Dpt de Didactica de las Ciencias; Universidad de Jaén; Paraje las Lagunillas s/n; Facultad de Humanidades y Ciencias de la Educación; Edificio 1; despacho 1334; 23008 Jaén; Spain; Tel: 34 (9)53 212390; Fax: 34 (9)53 212197

Evans, Jeff, J.Evans@mdx.ac.uk, School of Mathematics & Statistics; Middesex University; Queensway; ENFIELD; Middlesex; EN3 4SF; UK: Tel: + 44 (0)181 362 5490: Fax: + 44 ()181 362 6390

Even, Ruhama, ruhama.even@weizmann.ac.il, Department of Science Teaching, Weizmann Institute of Science, Rehovot 76100, ISRAEL,

972-8-9343157, http://www.weizmann.ac.il/ScienceTeaching/RuhamaEven/

Ewing, John, jewing@mathforamerica.org , Math for America, 800 Third Ave, 31st fl, New York, NY 10022, USA, (+1) 646-434-0464, www.mathforamerica.org

Fandiño Pinilla, Martha Isabel, bruno.damore@unibo.it, Università di Bologna, Italia, Tel: (57) 1 6126767

Faragher, Rhonda, rhonda.faragher@acu.edu.au, School of Education, Australian Catholic University (Canberra Campus), PO Box 256, DICKSON, ACT, 2617, (+61) (2) 6209 1142, Fax: (+61) (2) 62091153.

Farrugia, Marie Therese, _marie.t.farrugia@um.edu.mt_ <mailto:marie.t.farrugia@um.edu.mt>, Department of Primary Education; Faculty of Education; University of Malta; Msida MSD 2080; Malta; Tel: (356) 2340 2933

Faulkner, Fiona, fiona.faulkner@dit.ie, Dublin Institute of Technology, Mount Joy Square, Dublin 1, Ireland, 01-4024233.

Feikes, David, feikesd@pnw.edu, Purdue University Northwest, 1401 S US 421, Westville, IN 46391, USA, (219) 785-5489, http://www.cmlproject.com/

Feilchenfeld, David, feilchen@netvision.net.il, Ministry of Education, 91911 Jerusalem, Israel, Tel: 972-50-6283571

Fenwick, Chris, uczlcfe@ucl.ac.uk, UPCSE; University College London; Gower Street; London WC1E 6BT; UK; Tel : +44(0)20 7679 3197

Fenyvesi, Kristóf, fenyvesi.kristof@gmail.com, University of Jyväskylä, FI-40014, Jyväskylä, PL 35, Finland, +358 40 805 3324, www.experienceworkshop.hu / www.familyday.hu

Ferrer, Lazara, lferrer2@mdc.edu, 355 E 4^th St. Apt. 204, Hialeah, FL 33010, USA, +1-7864199874

Field, Michael, mikefield@gmail.com, Department of Mathematics, Rice University, 6100 S Main St.'

Houston, TX 77005-1892, USA, http://math.rice.edu/~mjf8/, http://wwwf.imperial.ac.uk/~mjfield1/index.html.

Filler, Andreas, filler@math.hu-berlin.de, Humboldt-Universität zu Berlin, Institut für Mathematik, D-10099 Berlin, Germany, Unter den Linden 6, Tel.: +49-30-20935870

Fine, Sue sue_fine@hotmail.com, 17 Hornby St, East Brighton Victoria 3187; Australia; Tel: 011 61395925557

Finesilver, Carla, cfinesilver@ioe.ac.uk, Department of Geography, Enterprise, Mathematics and Science, Institute of Education, 20 Bedford Way, London WC1H 0AL, United Kingdom, www.finesilver.info/maths/

Fitzgerald, Robert, R.Fitzgerald@signadou.acu.edu.au, Australian Catholic University; PO Box 256 Dickson ACT 2602; Australia; Tel: 06 209 1136; Fax: 06 209 1104

FitzSimons, Gail, gfitzsimons@swin.edu.au, Industrial Sciences Department (49); Swinburne University of Technology; PO Box 218; Hawthorn; Victoria 3122; AUSTRALIA; Tel: 613 9214 8984; Fax: 613 9214 8650

Fleet, Liz; Fleetl@livhope.ac.uk; Liverpool Hope University College; Hope Park; Liverpool L169JD; Great Britain; Tel: 0151 291 3012; Fax: 0151 291 3163

Fleet, Tony, Fleeta@livhope.ac.uk; Liverpool Hope University College; Hope Park; Liverpool L169JD; Great Britain; Tel: 0151 291 3525; Fax: 0151 291 3163

Flewelling, Arthur Gary, flew@sentex.net , Box 417, 201 Charles Street East, Arthur, Ontario, Canada, N0G 1A0, (+1) 519 848 2342

Floris, Ruhal, floris@fapse.unige.ch, Didactique des mathématiques; FAPSE - Université de Genève; 9, rte de Drize; CH-1227 Carouge; Switzerland; Tel: +41(0) 22 705 98 49; Fax:+41 (0) 22 705 98 55

Flottorp, Vigdis, vigdis.flottorp@lui.hio.no, Oslo University College, Avd. LUI, Servicebox 4 St. Olavs plass, N-0130 Oslo, Norway, tel: +47 22 45 22 96; Fax +47 22 45 21 35

Forbes, Sharleen, sharleen.forbes@vuw.ac.nz, School of Government, Victoria University, P.O.Box 600, Wellington, NEW ZEALAND. (+64) (0) 212753120, Fax: (+64) (0) 931 4046, http://www.vuw.ac.nz/

Forgasz, Helen, Helen.Forgasz@education.monash.edu.au, Faculty of Education (Clayton campus); Monash University; Victoria 3800; Australia; Tel: (+61 3) 9905 9194; Moblie: (+61) 419 502 940;

Forrester, Mike, M.A.Forrester@ukc.ac.uk, Department of Psychology; Keynes College; University of Canterbury; Canterbury; CT2 7L; Kent; UK; Tel: 44 (0)1227 764000 ext 3489; Fax: 44 (0)1227 763674

Fortes, Erminda C., fortes.ec@pnu.edu.ph, Philippine Normal University, Taft Avenue, Manila, 1000, Philippines, Tel (+63) (2) 317 1768

Fortuny, Josep, ipdm1@cc.uab.es, Facultat de Ciències de l'Educació; Universitat Autònoma de Barcelona; Edifici G; 081893 Bellaterra; (Barcelona); Spain; Tel: 93-5811133/ 93-6754052; Fax: 93-5811169/93-5812007/93-6754025; http://blues.uab.es/~ipdm4

Foster, Colin, c@foster77.co.uk, School of Education, University of Nottingham, Jubilee Campus, Wollaton Road, Nottingham NG8 1BB, UK, www.foster77.co.uk

Fox, Kathryn, University of Cumbria, Bowerham Road, Lancaster, LA! 3JD, 01524 384474, Kathryn.fox@cumbria.ac.uk

Frankenstein Marilyn, frankie@umbsky.cc.umb.edu, University of Massachusetts Boston; Harboiur Campus; 100 morrissey Boulevard; Boston; MA 02125-3393; USA; Tel: 00 1 617 287 5000; Fax: 00 1 617 265 7173

Fransman, Joany, _joany.fransman@nwu.ac.za_, Faculty of Education Sciences, School for Continuing Teachers' Education, North-West University, Potchefstroom Campus South Africa. 27812994551, Fax: 27182994558.

Freiberger, Marianne, mf344@cam.ac.uk, Millennium Mathematics Project, University of Cambridge, Centre for Mathematical Sciences, Wilberforce Road, Cambridge CB3 0WA, Phone: 01223 764268, http://plus.maths.org

Freiman, Viktor, viktor.freiman@umoncton.ca, Département d'enseignment au primaire et de psychopédagogie, Faculté des sciences de l'éducation, Université de Moncton, Campus de Moncton, Moncton, Canada, E1A 3E9, Tél. (1-506) 858 4437 , Fax: (1-506) 858 4317, http://www0.umoncton.ca/fse/Personnel/Freiman,__Viktor.html

Frey, Patrick, _pfrey@math.iupui.edu_, Department of Mathematical Sciences, IUPUI, 402 N. Blackford St., Indianapolis, IN, 46202, 1-317-278-9644

Frascella, William, frascell@indiana.edu, Director; Indiana University Center for Mathematics Education; Swain Hall East, Room 203; Bloomington, IN 47405; USA; Tel: 812-855-5564; Fax: 219-257-0669

Froim, Margaret, margaret1@012.net.il ,Talpiot College of Education; Tel Aviv and National Centre of Teaching Mathematics; School of Education; University of Haifa ,Israel; Tel: 972 3 5038776

Frostad, Per, perfro@alfa.avh.unit.no, Department of Education; University of Trondheim; N-7055 Dragvoll; Norway; Tel: + 47 73 59 19 44; Fax: + 47 73 59 18 90; Home+ 47 73 93 26 32

Fuglestad, Anne Berit, Anne.B.Fuglestad@uia.no, University of Agder; Gimlemoen 25 J, Servicebox 422; 4604 Kristiansand; Norway Tel +47 38 14 15 38, Fax. +47 38 14 10 71

Fullarton, Sue, fullarton@acer.edu.au, The Australian Council for Educational Research; Private Bag 55; Camberwell; Victoria 3124; Australia; Tel: +61 03 9277-5727; Fax: +61 03 9277-5500

Furinghetti, Fulvia, furinghetti@dima.unige.it, Dipartimento di Matematica, Università di Genova, via Dodecaneso 35, 16146 Genova, Italy, (+39) 010318731, Fax: (+39) 0103536752, http://www.dima.unige.it/~furinghe/

Furner, Joe, jfurner@bamaed.ua.edu, The University of Alabama; Graves Hall 308; The College of Education; Tuscaloosa; Alabama 35401; U.S.A.; Tel (205) 348-2073; Fax (205) 348-1164

Fyhn, Anne Birgitte, anne.fyhn@uit.no, Department of Education N-9037 UiT-The Arctic University of Tromsø, Norway, 0047 776 46120, 0047 9974 9357, https://en.uit.no/om/enhet/ansatte/person?p_document_id=42365&p_dimension_id=88155

Gad , Zein Elabdeen Shahata , mzein55@yahoo.com , Department of Curricula and Instruction, Faculty of Education, Sohag University, Sohag, Egypt, (2011) 1962543.

Gager, Philip, xtg007@cent1.lancs.ac.uk, Department of Mathematics; University College of St Martin; Lancaster; LA1 3JD; UK; Tel: +(44) (0)1524 63446 ext 470; Fax: +(44) (0)1524 68943; Home: (+44) (0)1524 37672 (No longer at the University of Cumbria (formally St Martins): information from Kathryn Fox)

Gal, Hagar, hagarg@dyellin.ac.il, David Yellin College of Education, Jerusalem, Israel, Tel. 972-50-2211021, Telefax 972-2-6587505

Gallego,Geoffrin, Ninoska,milla@utp.edu.co,universidad tecnológica de pereira,Pereira,Colombia,cell phone:(576) 3176418446,educación matemáticas y TIC.

Galligan, Linda, Linda.Galligan@usq.edu.au, Department of Mathematics and Computing, University of Southern Queensland, Toowoomba, Australia 4350 (+61) (0) 746312263, Fax: (+61) (0) 746315550, https://eportfolio.usq.edu.au/view/view.php?id=4340

Gamba, López,Germán, gambagoras@gmail.com, Calle 13 oeste # 55-72 Apto 203 Cali Colombia, telefono 3152831869

Gandhi, Haneet, haneetgandhi@gmail.com, hgandhi@cie.du.ac.in, Department of Education, 33 Chhatra Marg, University of Delhi, India-110007.

Garciadiego, Alejandro R., gardan@ciencias.unam.mx, Depto. Matemáticas 026, Facultad de Ciencias, UNAM, 04510 CDMX, Mexico, 5255 56225414, www.alejandro-garciadiego.com

Garcia, Fco. Javier, fjgarcia@ujaen.es, Departamento de Didactica de las Ciencias, Facultad de Humanidades y Ciencias de la Educacion (edificio D2), Paraje de las Lagunillas s/n, Universidad de Jaen, Tel. (+34) 953211972, Fax (+34) 953211975

Garcia, Javier, jdg@fotonica.ulpgc.es, Instituto de La Isleta; Math Departament; C/ Juan Rej¢n; 58- 35008 LAS PALMAS (GRAN CANARIA); Canary Islands-SPAIN; Tel: 34-28-452850

García, María del Consuelo mgarcia@isphlg.rimed.cu, Instituto Superior Pedagógico de Holguín; Centro de Estudios de la Educación; Avenida de los Libertadores; km 3.5, Holguín 81000; CUBA.

García - Quiroga, Bernardo Emilio, bgarciaquiroga@hotmail.com, Universidad de la Amazonia, Florencia (Caquetá), Colombia. Teléfono celular 33115990134.

Garegae, Kgomotso, G. garegaek@mopipi.ub.bw, Department of Mathematics and Science Education, Faculty of Education, University of Botswana, Main Campus, Gaborone, Botswana, phone: (+267) 355 2314, Fax: (+267) 318 5096

Garo, Sofokli, sofokligaro@gmail.com, Faculty of Education, A. MOISIU University, Durres, Albania, +355 68 3933036, Fax + 355 52 239163, www.uamd.edu.al

Gates, Peter, peter.gates@nottingham.ac.uk, Centre for the Research into Mathematics Education, School of Education, University of Nottingham, Jubilee Campus, Nottingham NG8 1BB, UK, (+44) (0) 115 951 4432;http://www.nottingham.ac.uk/education/people/peter.gates

Gattuso, Linda, gattuso.linda@uqam.ca, Departement de mathematiques; Universite du Quebec; Montreal; C.P. 8888 succ. Centre ville; Montreal Qc; Canada H3C 3P8; Tel: (514) 987 6714; Fax: (514) 987 8935; http://www.math.uqam.ca/

Gualdrón, Elgar; elgargualdron@yahoo.es; Departamento de Matemáticas, Grupo de Investigación EDUMATEST; Universidad de Pamplona, Pamplona-Colombia, Tel: (57) (7)5685303 Ext. 245; celular (57) 3177616022

Gaulin, Claude, claude.gaulin@hotmail.com ,Faculte des sciences de l'Education; Universite Laval; Quebec;Canada G1K 7P4; Tel: +1 418 653 2947

Gedamke, Kathryn, kgedamke@keiseruniversity.edu, 5427 SE Railway Avenue, Stuart, Florida, 34997, (772)220–3576, (772)834–1599

Geldenhuys, Johanna L., johanna.geldenhuys@nmmu.ac.za Education Faculty, South Campus, Nelson Mandela Metropolitan University, PO Box 77000, Port Elizabeth, 6031, South Africa; Tel: +27 41 504 1188 Fax +27 866416259

George, Mary, marygeo@rediffmail.com, Associate Professor, Post Graduate and Research Department of Mathematics, Mar Ivanios College, Trivandrum, Kerala, India, 0091-0471 2531284, 09496366803

Georgiadou-Kabouridis , Barbara, bkabouridis@gmail.com, Ministry of Education, 7th Office of Primary Education, M.Antypa 84 & Ag.Nikolaou 7, 16346, Hlioupoli, Attiki, Greece, (+3) (0) 2109958301, Fax (+3) (0) 9952369

Gerdes, Paulus, pgerdes@coe.uga.edu, (Mozambique email: paulus@up.uem.mz); Universidade Pedagogica; C.P. 915; Maputo; Mozambique; On sabbatical leave during 1996/1997 to: The University of Georgia; 105 Aderhold Hall; Athens; Georgia 30602-7124; USA; Tel: (706) 542-4045; Fax: (706) 542-4551

Gérini, Christian, _gerini@univ-tln.fr_, IUT of Toulon, Laboratory I3M, USTV,BP 20132, 83957, La Garde Cedex, FRANCE, (+33)(0)4 94 28 62 90 & cel: (+33) (0)6 31 51 13 97

Gerofsky, Susan, susan.gerofsky@ubc.ca , Department of Curriculum and Pedagogy, University of British Columbia, 2125 Main Mall, Vancouver, BC, Canada. V6T 1Z4, 604-822-5204, fax: 604-822-4714

Geldenhuys, JL, gldnhjl@pelican.vista.ac.za Department of Postgraduate Education; Vista University; Private Bag X613; 6000 Port Elizabeth; South Africa; Tel: +27 41 644 200; Fax: +27 41 641 423

Ghazali, Munirah, munirah_ghazali@yahoo.com, munirah@usm.my, School of Educational Studies, University Sains Malaysia, 11800 Minden, Penang, Malaysia (+60) (4) 653 3242 or (+60) (4) 653 3235, Fax: (+60) (4) 657 2907, http://www.usm.my/education/content.asp?m=staff&n=admin

Gilderdale, Charlie cfg21@cam.ac.uk Millennium Mathematics Project, University of Cambridge, Centre for Mathematical Sciences, Wilberforce Road, Cambridge CB3 0WA, Phone: 01223 764246 www.nrich.maths.org

Gillespie, John, John.Gillespie@nottingham.ac.uk,Centre for the Study of Mathematics Education; University of Nottingham; Jubilee Campus, Nottingham NG8 1BB; UK; Tel: 44 (0)115 9514988; Fax: 44 (0)115 979 1813

Gilmer, Gloria, ggilmer@aol.com, Math-Tech Milwaukee; 9155 North 70th Street; Milwaukee; Wisconsin 53223-2155; USA; Tel: 414 355 5191

Giraldo, Jose Huberto, jose.giraldo@tamucc.edu, Texas A&M University Mathematics Statistics Department 6300 Ocean Dr. Corpus Christi, TX 78412, (361) 825 5827

Gíslason, Ingólfur ingolfug@hi.is, University of Iceland, School of Education, v/Stakkahlíð, 101 Reykjavík, Iceland

Glencross, Michael, glencross@getafix.utr.ac.za, Department of Maths & Science Education; University of Transkei; Private Bag X1; 5117 Umtata; South Africa; Tel: (+27) 471 351 240; Fax: +27 471 302 2554

Glover, Hugh, maaohg@upe.ac.za, Department of Science, Mathematics and Technology Education; University of Port Elizabeth; PO Box 1600, Port Elizabeth, 6000 South Africa; Tel: +27 41 504 4013; Fax: +27 41 582 1000.

Godino, Juan D, jgodino@goliat.ugr.es, Departamento de Didactica de la Matematica; Universidad de Granada; 18071; Granada; Spain; Tel: (+34) (58) 243 950; Fax; (+34) (58) 243 949; http://www.ugr.es/~jgodino

Goldin, Gerald A., geraldgoldin@dimacs.rutgers.edu, Graduate School of Education, Rutgers University, 10 Seminary Place, New Brunswick, NJ 08901, USA, (+1) 908 720 2434, Fax: (+1) 732 932 7552

Golding, Jennie, j.golding@ucl.ac.uk, UCL Institute of Education, 20 Bedford Way, London WC1H0AL, +442076126655, https://iris.ucl.ac.uk/iris/browse/profile?upi=JGOLD18

Goldstein, Colleen, aegoldst@ilink.nis.za, 4 Barkley Road, Parktown; 2050 Johannesburg; South Africa; Tel: +27 11 482 1090; Fax: +27 11 762 1862

Goldstein, Deena Soffer, deenasoffer@gmail.com, 1230 W Melrose St Apt 1, Chicago IL, 60657, 734-834-0479

Goldstein, Ronnie, r.goldstein@open.ac.uk, Open University; Learning Schools Programme;12 Cofferidge Close; Stoney Stratford;Milton Keynes; Buckinghamshire; Tel: +44 (0)1908 858 659

Gomes, Alexandra, magomes@ie.uminho.pt, Instituto de Educação; Universidade do Minho; Campus de Gualtar; 4710- 057 Braga; Portugal; (00) (351) 253 601 249; Fax: (00) (351) 253 601 201

Gomez, Pedro, argeifontes@gmail.com, “una empresa docente”, Facultad de Educación, Universidad de los Andes, Bogotá, Colombia, (+571)3394949 ext. 3290, http://ued.uniandes.edu.co

González, Fredy, fredygonzalez@hotmail.com, Núcleo de Investigación en Educación Matemática “Dr. Emilio Medina” (NIEM), Departamento de Matemática, Universidad Pedagógica Experimental Libertador (Núcleo Maracay, Estado Aragua, Venezuela), Apartado Postal 514, Código Postal 2101, Maracay, Estado Aragua, Venezuela, (+58) (414) 4609532, http://hisoem-ve.ning.com/

González-Martín, Alejandro, a.gonzalez-martin@umontreal.ca, Département de Didactique, bureau D-522, Faculté des Sciences de l’Éducation, Université de Montréal, C.P. 6128 succursale Centre-ville, Montréal QC, Canada, H3C 3J7, (1) 514-343-6111 (poste 8803), Fax : (1) 514-343-7286, http://www.scedu.umontreal.ca/faculte/corps.html#GONZALEZ

Goodchild, Simon, simon.goodchild@uia.no, Department of Mathematics, Faculty of Engineering and Science, University of Agder, Kristiansand, Norway, (+47) 38 14 17 60, Fax: (+47) 38 14 10 71

Goodwin, Jeffrey, jgoodwin@ford.anglia.ac.uk, Anglia Polytechnic University; Sawyers Hall Lane; Brentwood; Essex CM15 9BT; U.K.; Tel: + (44) (0)1277 264504; Fax: + (44) (0)1277 211363

Goos, Merrilyn, merrilyn.goos@ul.ie, EPI*STEM - National Centre for STEM Education, School of Education, University of Limerick, Ireland, T +353 (0)61 202063

Gordon, John, jgordon989@gmail.com, 13742 223 Street, Laurelton, NY, 11413, USA 347-476-1710

Gorgorio, Nuria, _Nuria. Gorgorio@uab.cat_; Departament Didactica de la Matematica; Facultat Ciencies de l'Educació, G-5, 142; Universitat Autonoma de Barcelona, 08192 Bellaterra, Spain; (+34) 93 581 3205 ; fax: (+34) 93 581 1169

Götz, Stefan, Stefan.Goetz@univie.ac.at, Fakultät für Mathematik, University of Vienna, Nordbergstraße 15, 1090 Vienna, Austria, (+43) (0) 1 4277 50623, Fax: (+43) (0) 1 4277 50620, http://plone.mat.univie.ac.at/Members/goetz

Gougeon, Deborah J., gougeond1@scranton.edu, Operations & Information Department, Kania School of Management, University of Scranton, Scranton, PA 18510 USA: Tel: 570-941-7610

Gould, Tabitha, tabitha.gould@cambridgemaths.org, Cambridge Mathematics, The Triangle Building, Shaftesbury Road, Cambridge CB2 8EA, +44 1223 558853, www.cambridgemaths.org

Grahl, Alejandro Federico, profesorgrahl@gmail.com, Perito Moreno 2668 (1754), Villa Luzuriaga, Buenos Aires, Argentina, +54 9 11 6982-2104

Graham, Ted, E.Graham@plymouth.ac.uk, Centre for Teaching Mathematics; School of Mathematics and Statistics; University of Plymouth; Drake Circus; Plymouth; PL4 8AA; UK; Tel: +44 (0)1752 232773; Fax +44 (0)1752 232772; http://www.tech.plym.ac.uk/ctmhome/ctm.html#tg

Grant, Fiona, fiona@maths.ed.ac.uk, Edinburgh Centre for Mathematical Education; University of Edinburgh; JCMB; Kings Buildings; Mayfield Road; Edinburgh EH9 3JZ; Scotland; UK; Tel: (+44) (0)131 650 5052; Fax: (+44) (0)131 650 6553

Graumann, Guenter, graumann@mathematik.uni-bielefeld.de, Fakultaet für Mathematik, Universität Bielefeld; Universitätsstrasse 25, D-33501 Bielefeld, Germany; Tel. +49 521 1066246 / priv. +49 521 872858

Graven, Mellony Holm, m.graven@ru.ac.za , Education Department, Rhodes University, P O Box 94, Grahamstown, 6140 www.ru.ac.za/sanc/

Greefrath, Gilbert, greefrath@uni-muenster.de, Institut für Didaktik der Mathematik und der Informatik; Universität Münster; Fliednerstr. 21; D-48149 Münster, Germany; Tel: +49 251 8339396;

Greenstein, Steven, sgreens@uvi.edu, Department of Mathematical Sciences, College of Science and Mathematics, University of the Virgin Islands, 2 John Brewers Bay, St. Thomas, VI 00802-9990, USA, (+1) 340 693 1630, http://www.wonderfulideas.org

Grevholm, Barbro Elisabeth, barbro.grevholm@uia.no, Kristianstad University, Section for Teacher Education, Högskolan Kristianstad, SE29188 Kristianstad, Sweden, (+46)46143826, http://www.pdb.hkr.se/staff.aspx?id=1452

Grevholm, Barbro Elisabeth, barbro.grevholm@uia.no, University of Agder, Department of Mathematical Sciences, Faculty of Engineering and Science, Postboks 422, NO-4604 Kristiansand, Norway, (+46)46143826, https://www.uia.no/kk/profil/barbrog

Grier, Stacey, SGRIER@ed-hydra.edn.gu.edu.au, Griffith University; Mt Gravatt Campus (Education); Messines Ridge Road; Mt Gravatt; Queensland 4121; Australia

Grime, James, enigma@maths.org, Centre for Mathematical Science, Cambridge University, Wilberforce Road, Cambridge, CB3 0WA, UK, (+44) 7092131080, Fax: (+44) 7092131080, http://enigma.maths.org

Grootenboer, Peter, p.grootenboer@griffith.edu.au, Griffith Institute for Educational Research, School of Education, Griffith University, Gold Coast campus, Gold Coast, Queensland 4222, Australia, (+61) (0)7 55528916, Fax: (+61) (0)7 55528599, http://www.griffith.edu.au/education/school-education-professional-studies-gold-coast/staff/dr-peter-grootenboer

Grouws, Douglas A., grouwsd@missouri.edu, University of Missouri, 303 Townsend Hall, Columbia MO 65211, (O) 653-884-5982, Fax 573-882-4481.

Groves, Susie, grovesac@deakin.edu.au, Faculty of Education; Deakin University; 221 Burwood Highway; Burwood Vic 3125; AUSTRALIA; Tel: +61 (0)3 9244 6405; Fax: +61 (0)3 9244 6834

Groves, Susie, grovesac@deakin.edu.au, School of Mathematics Science and Environmental Education; Deakin University; 221 Burwood Highway; Burwood 3125; Australia; +61 3 9244 6405 (phone); +61 3 244 96834 (fax)

Guacaneme-Suárez, Edgar Alberto, guacaneme@pedagogica.edu.co, Universidad Pedagógica Nacional, Bogotá-Colombia, Tel: (57) 1 5941894 Ext. 254.

Gülkılık, Hilal, ghilal@gazi.edu.tr, Mathematics Teaching Programme, Department of Secondary Science and Mathematics Education, Faculty of Education, Gazi University, Ankara, Turkey, (+90) 312 222 82 56

Gunn, Sharon, sharonkg@unimelb.edu.au, Department of Mathematics and Statistics University of Melbourne Victoria 3010 Australia, (03)83446878

Gunnarsdóttir, Guðný Helga gudnyh@hi.is, University of Iceland, School of Education, v/Stakkahlíð, 101 Reykjavík, Iceland (+354) 5255363

Gura, Ein-Ya, egura@mscc.huji.ac.il , The Center for the Study of Rationality, The Hebrew University of Jerusalem, Givat Ram, 91904 Jerusalem, Israel, 972-2-5686966

Gutierrez, Angel, angel.gutierrez@uv.es, Dpto. de Didactica de la Matematica; Universidad de Valencia; Apartado 22045; 46071 Valencia (Spain); Tel: 34-6-3864486; Fax: 34-6-3864487

Gutstein, Eric (Rico), gutstein@uic.edu , Dept. of Curriculum & Instruction, University of Illinois-Chicago, 1040 W. Harrison St., M/C 147, Chicago, IL 60607, USA , Tel: 312-413-2410 (office); 312-613-6799 (cell), Fax: 312-996-8134

Guy, Noel, noel@sun1.umh.ac.be, Universite de Mons-Hainaut; Faculte des Sciences; 15 Avenue Maistriau; B 7000 Mons; Belgium; Tel : 65373415; Fax: 65373054

Guzman, Ismenia, iguzman@aix1.ucv.cl, Instituto de Matematicas; Universidad Catolica de Valparaiso; Facultad de Ciencias Basicas y Matematicas; Casilla 4059; Valparaiso; Chile; Tel : 56 32 27 40 27 40 01; Fax: 56 32 27 40 41

Haapasalo, Lenni, lenni.haapasalo@uef.fi or roger@elisanet.fi, University of Eastern Finland, Purolanraitti 2, 80140 Joensuu, Finland, +458403564280, http://cs.uef.fi/lenni/

Habibullah, Saleha Naghmi, salehahabibullah@hotmail.com, Head, Department of Statistics, Kinnaird College For Women, Lahore, Pakistan, +92 333 4249674

Hadjerrouit, Said, Said.Hadjerrouit@uia.no, University of Agder; Gimlemoen 25 J, Servicebox 422; 4604 Kristiansand; Norway Tel +47 38 14 17 93, Fax. +47 38 14 10 71

Haggarty, Linda, L.M.Haggarty@reading.ac.uk, Department of Science and Technology Education; Faculty of Education and Community Studies; University of Reading; Woodlands Avenue; Earley; Reading RG6 1HY; UK; Tel: 44 (0) 1734 875123 ext. 4939; Fax: 44 (0)1734 318650

Häggström, Johan, johan.haggstrom@ncm.gu.se, University of Gothenburg; National Centre for Mathematics Education; NCM; Box 160; SE-405 30 Göteborg; Sweden; Tel:+46 31 7866987; Fax: +46 31 7862200; http://ncm.gu.se

Han, Annie, yhan@bmcc.cuny.edu, Mathematics Department, The City University of New York, Borough Manhattan Community College, 199 Chambers Street, N530 New York, NY 10007, USA, Tel. 212-220-1343, Fax. 212-748-7459, http://www1.bmcc.cuny.edu/faculty/fp.jsp?f=ahan

Hana, Gert Monstad, gmh@hib.no, Bergen University College, Postboks 7030, NO-5020 Bergen, Norway, (+47) 55 58 57 51

Hanna, Gila, gila.hanna@utoronto.ca, University of Toronto, Ontario Institute for Studies in Education; 252 Bloor Street West, Toronto, Ontario M5S 1V6; Canada

Hannah, John, john.hannah@canterbury.ac.nz , Department of Mathematics and Statistics, University of Canterbury, Private Bag 4800, Christchurch 8140, New Zealand. Tel: +64 (0)3 3667001 ext 7685.

Hannah, Julie, julie@cosmos.wits.ac.za, Mathematics Department; University of the Witwatersrand; P O Wits; 2050 Johannesburg; South Africa; Tel: +27 11 716 2893; Fax: +27 11 403 2017

Hannula, Markku S., markku.hannula@helsinki.fi, Faculty of Educational Sciences, Siltavuorenpenger 5, FIN-00014 University of Helsinki, FINLAND, +358503183919, https://tuhat.helsinki.fi/portal/en/persons/markku-hannula(ee538eb0-4ad3-4f7e-94e6-11baa09fed2e).html

Hansen, Alice, contact@alicehansen.co.uk, Mathematics Consultant, Children Count Ltd, 10 Homfray Grove, Morecambe, Lancashire, England, UK. LA3 3AQ. Tel +44 (0)1524 415981 or +44 (0)7774 355822 www.alicehansen.co.uk

Hansen-Smith, Bradford, wholemovement@gmail.com, 1802 24th AV. S. #4, Grand Forks, ND, 58201, USA, 773-7949764, http://www.wholemovement.com

Harbison, Lorraine, lorraine.harbison@dcu.ie, School of STEM Education, Innovation and Global Studies, DCU St. Patrick’s Campus, Dublin, D09 DY00, Ireland, 00 353 1 884 2324, https://www4.dcu.ie/stem_education_innovation_global_studies/people/lorraine-harbison.shtml

Harding, Ansie, aharding@up.ac.za, Department of Mathematics and Applied Mathematics, University of Pretoria, South Africa. (+427) (0) 12 4202738, Fax: (+27) (0) 12 4203893. http://www.up.ac.za/maths

Hardouin, Cécile, hardouin@parisnanterre.fr, MODAL'X, Université Paris Nanterre, 92000 Nanterre, FRANCE, http://hardouinc.perso.math.cnrs.fr/

Hardy, Tansy, Tansy.Hardy@nottingham.ac.uk, Mathematics Education Social Research Group; School of Education; University Park; Nottingham; NG7 2RD; UK; Work (+44) (0)115 951 4507; Fax (+44) (0)115 979 1506

Harris, Andrew, andrew.harris@canterbury.ac.uk , Department of Primary Education, Faculty of Education, Canterbury Christ Church University, CT1 1QU. +44 (0)1227 782717

Harris, John, j.harris@bendigo.latrobe.edu.au, School of Arts, Education & Culture; LaTrobe University; Bendigo; Victoria 3550; Australia; Tel: 61 54 447316; Fax: 61 54 447800

Harries, Tony, AVHarries@durham.ac.uk, School of Education; Durham University; Leazes Road; Durham DH1 1TA; U.K; Tel: +44 (0)191 374 1725; Fax: +44 (0)191 374 3506

Hart, George, george@georgehart.com, Stony Brook University, 3 Stony Rd, Stony Brook, NY 11790 USA, 631-546-8609, http://georgehart.com

Hartnett, Judy judyhartnett@bigpond.com Making Maths Reason-able, Australia, +61403211974 www.makingmathsreasonable.com.au

Harvey, Anne a.harvey@chi.ac.uk Principal Lecturer in Mathematics Education, The Mathematics Centre, University of Chichester, Bognor Regis Campus; Upper Bognor Road; Bognor Regis PO21 1HR; UK; Tel: +44 (0)1243 812078

Harvey, Richard, starfh@lib.marjon.ac.uk, College of St Mark & St John; Plymouth PL6 8BH; UK; Tel: (+44) (0) 1752 777188 ext 4348; Fax (+44) (0)1752 761123

Hašek, Roman, hasek@pf.jcu.cz, Department of Mathematics, University of South Bohemia, Jeronýmova 10, 371 15 České Budějovice, Czech Republic, (+420) 387773088

Hatfield, Larry, lhatfiel@coe.uga.edu, Department of Mathematics Education; University of Georgia; 105 Aderhold Hall; Athens; Georgia 30602; USA; Tel: 706 542 4194; Fax: 706 542 4551

Haworth, Anne, anne.haworth@manchester.ac.uk, School of Education, Ellen Wilkinson Building, University of Manchester, Oxford Road, Manchester, M13 9PL. UK; Tel+44(0)161 275 3214

Haylock, Derek, D.Haylock@uea.ac.uk, School of Education, University of East Anglia; Norwich NR4 7TJ; UK; Tel: 01603 592624; Fax: 01603 593446

Healy, Lulu, teuelhe@ioe.ac.uk, Department of Mathematics Statistics and Computing; Institute of Education; University of London; 20 Bedford Way; London WC1H 0AL; UK; Tel: +44 (0) 171 612 6678; Fax: +44 (0) 171 612 6686

Heid, M. Kathleen, mkh2@psu.edu, 271 Chambers Building, The Pennsylvania State University, University Park, PA, USA, (814)8652226

Heirdsford, Ann, a.heirdsfield@qut.edu.au, Centre for Mathematics and Science Education; Queensland University of Technology; Locked Bag No.2; RED HILL 4059; Queensland; Australia; TEL + 617 7 3864 5558; Fax + 617 7 3864 3643

Hejný, Milan, milan.hejny@pedf.cuni.cz, Department of Mathematics and Mathematical Eduction, Faculty of Education, Charles University in Prague, M.D. Rettigove 4, 116 39 Praha 1, Czech Republic, (+420) 221900250, Fax: (+420) 221900248 http://kmdm.pedf.cuni.cz

Helfgott, Michel, helfgott@etsu.edu , Department of Mathematics, East Tennessee State University, Johnson City, TN37614, USA, (423)439 6977.

Helme, Sue, s.helme@edfac.unimelb.edu.au, Department of Science and Mathematics Education; University of Melbourne; Parkville 3052; AUSTRALIA; Tel: +61 3 9344 8531; Fax: + 61 3 9344 8739.

Henderson, David W.; dwh2@cornell.edu, Professor Emeritus of Mathematics; Cornell University; Ithaca, NY; USA; http://www.math.cornell.edu/~henderson/

Henriques, Barbara, barbara.henriques@trincoll.edu, Educational Studies Program; Trinity College; 300 Summit Street; Hartford, CT 06106-3100; USA; Tel: (860) 297-2278;Fax: (860) 297-5358

Herbst, Patricio (Pat), pgherbst@umich.edu, 610 East University Ave. #4215B Ann Arbor MI 48109-1259, USA, 1-734-763-3745, http://www.soe.umich.edu/people/profile/patricio_guillermo_herbst/, www.lessonsketch.org

Herget. Wilfried, wilfried.herget@mathematik.uni-halle.de, Institute of Mathematics, Didactics of Mathematics, Martin-Luther-University Halle-Wittenberg, 06099 Halle, Germany, (+49) (0) 345 55-24612 / -24624 (Simone Keller), Fax (+49) (0) 345 55-27247 / -27001 (Simone Keller), http://didaktik.mathematik.uni-halle.de

Hernandez-Martinez, Paul, phernandezmartinez@swin.edu.au, Swinburne University of Technology, Department of Mathematics, PO Box 218 (Internal mail H38), Hawthorn, Victoria 3122, Australia, +61 392148216, http://paulhernandezmartinez.net

Hernández-Montañez, Wilfaver, whernandezm@pedagogica.edu.co , Universidad Pedagógica Nacional, Bogotá-Colombia, Tel: (57) 1 5941894 Ext. 254.

Herrington, Tony, a.herrington@cowan.edu.au, Edith Cowan University; Pearson St; Mount Lawley; Australia 6050; Tel: 61 9 3706474; Fax: 61 9 3702910

Hewitt, Dave, D.P.Hewitt@bham.ac.uk, School of Education; University of Birmingham; Edgbaston; Birmingham; B15 2TT; UK; Tel: (+44) (0)121 414 4824; Fax: (+44) (0)121 414 4865

Hewett, Mary, maryh@ise.canberra.edu.au, School of Mathematics & Statistics; University of Canberra; PO Box 1, Belconne; .C.T. 2616; Australia; Tel: 61 6 (06) 201 2951; Fax: 61 6 (06) 201 5041

Hickman-Pinder, Susan, _roadshow@maths.cam.ac.uk_, Millennium Mathematics Project, University of Cambridge, Centre for Mathematical Sciences, Wilberforce Road, Cambridge, CB3 0WA, UK, www.mmp.maths.org/roadshow

Hillel, Joel, jhillel@mathstat.concordia.ca, Department of Mathematics and Statistics; Concordia University; 1455 de Maisonneuve blvd. West, Montreal, Quebec, H3G 1M8, Canada, ; Tel: (514) 848 2424 extention 3229

Hine, Gregory, gregory.hine@nd.edu.au, School of Education, The University of Notre Dame Australia, 2 Mouat Street, Fremantle, Western Australia, Australia, +61-894330152, http://www.nd.edu.au/fremantle/schools/education/staff/ghine.shtml

Hinna, Kristin Ran Choi, khi@hib.no, Bergen University College, Pb. 7030, N-5020 Bergen, Norway, (+47) 55 58 59 40, Fax: (+47) 55 58 58 09

Hirst, Keith, keh@soton.maths.ac.uk, Faculty of Mathematical Studies; University of Southampton; SOUTHAMPTON SO17 1BJ; UK; Tel: +44 (0)1703 593683; Fax: +44 (0)1703 595147

Hlynka, Myron, hlynka@uwindsor.ca, Department of Mathematics and Statistics, University of Windsor, Windsor, Ontario, N9B 3P4, CANADA, Phone 1-519-253-3000 (ext. 3014), Fax 519-971-3649

Hockman, Meira, Mathematics Department; University of the Witwatersrand; P O Wits; 2050 Johannesburg; South Africa; Tel: +27 11 716 2922; Fax: +27 11 640 18332

Hodgen, Jeremy, jeremy.hodgen@kcl.ac.uk Department of Education and Professional Studies, King's College London, Franklin-Wilkins Building (Waterloo Bridge Wing), 150 Stamford Street, London SE1 9NH; +44(0) 20 7848 3102; Fax: +44 (0) 20 7848 3182; http://www.kcl.ac.uk/schools/sspp/education/staff/jhodgen.html

Hodgson, Bernard R., Bernard.Hodgson@mat.ulaval.ca, Département de mathématiques et de statistique, Faculté des sciences et de génie, 1045, avenue de la Médecine, Université Laval, Québec (Québec) G1V 0A6, Canada, +1 418 656 2131, x2975, Fax: +1 418 656 2817, http://www.mat.ulaval.ca/pages/hodgson/

Hoffmann, Ronit. ronithof@gmail.com. Kibbutzim College of Education. Tel-Aviv, Israel.

Hohenwarter, Markus, markus@geogebra.org , Mathematics Education, Johannes Kepler University Linz, Altenberger Strasse 69, 4040 Linz, Austria, +43 650 5382473 http://www.geogebra.org

Holcomb, Jeff, jeff@shosholoza.org, American International School of Rotterdam, Rotterdam, www.holcombmath.com

Hollingsworth, Hilary, h.hollingsworth@edfac.unimelb.edu.au, Department of Science and Mathematics Education; University of Melbourne; Parkville 3052; AUSTRALIA; Tel: +61 3 9344 8531; Fax: + 61 3 9344 8739.

Holmes, Kathryn, Kathryn.Holmes@newcastle.edu.au, School of Education, The University of Newcastle, Callaghan, NSW 2308, AUSTRALIA, Tel 61 2 49216647, http://www.newcastle.edu.au/school/education/index.htm

Holton, Derek, dholton@maths.otago.ac.nz, Department of Mathematics and Statistics; University of Otago; Box 56 ; Dunedin; New Zealand; Tel: (64) (03) 479 7758; Fax: (64) (03) 479 8427

Hookings, Alistair, hookings@manukau.ac.nz, Manukau Institute of Technology; Private Bag 94006; Manukau City; Auckland; New Zealand; Tel (64)(9)274 8889 ext 8220; Fax (64)(9)273 0711

Horn, Ilana, ilana.horn@vanderbilt.edu, Department of Teaching and Learning, Vanderbilt University Peabody College, Nashville, TN, USA, +1-615-322-5884

Horne, Marj, m.horne@christ.acu.edu.au, Christ Campus; Australian Catholic University; 17 Castlebar Rd; Oakleigh 3166; Victoria Australia; Tel: +61 3 9563 3656; Fax: +61 3 9563 3605

Horsefield, Steve, finstall@rmplc.co.uk, PC Support Offcer/ Secondary curriculum Coordinator; Hereford and Worcester IT Service; The Finstall Centre; Stoke Rd; Aston Fields ; Bromsgrove B60 3EN; UK; Tel: +44 01527574654; Fax: +44 01527570261

Horsman, Rachael, rachael.horsman@cambridgemaths.org, Cambridge Mathematics, The Triangle Building, Shaftesbury Road, Cambridge CB2 8EA, +44 1223 553255, www.cambridgemaths.org

Houdement, Catherine, catherine.houdement @univ-rouen.fr, Laboratoire André Revuz, Université de Paris 7 et IUFM de Haute Normandie, BP18, F 76131 Mont Saint Aignan Cedex, FRANCE

Houston, Kenneth, sk.houston@ulst.ac.uk, School of Computing and Mathematics; University of Ulster; Jordanstown; Newtownabbey; Co. Antrim; Northern Ireland; BT37 0QB; Tel: +44-1232-366953/366124; Fax: +44-1232-366859; http://www.infj.ulst.ac.uk/staff/sk.houston/

Hove, Juul ten, jtenhove@worldaccess.nl, Pasteurstraat 30, 7555, NG Hengelo; The Netherlands; Tel: +31 74 250 1752: Fax: +31 74 250 3682.

Hoyles, Celia , c.hoyles@ioe.ac.uk, London Knowledge Lab, Institute of Education, University of London 23- 29 Emerald Street, London WC1N 3QS UK, +44207 612 6659 http://tinyurl.com/CeliaHoyles

Hsu, Pao-sheng, 59 East Skunk Ridge Road, Columbia Falls, ME 04623, USA, hsupao@maine.edu or paoshenghsu@googlemail.com, 1-207-483-4431

Hudson, Brian, B.G.Hudson@shu.ac.uk, Mathematics Education Centre; Sheffield Hallam University; 25 Broomgrove Road; Sheffield S10 2NA; UK; Fax +44 114 253 2339; Phone +44 114 253 2346/2343

Human, Piet, pgh@akad.sun.ac.za, Department of Didactics; Stellenbosch University; 7600 Stellenbosch; South Africa; Tel: +27 21 808 2286; Fax: +27 21 887 2628

Hunter, Jodie, j.hunter1@massey.ac.nz, Massey University, Private Bag 102904, North Shore, Auckland 0745, New Zealand, Tel. +64 9 4140800 ext 43518Irwin, Kathryn , k.irwin@auckland.ac.nz, Education Department; University of Auckland; Auckland; New Zealand; tel +64 9 373 7599 ext 8201; fax +64 9 373 7455

Hunting, Robert, huntingr@mail.ecu.edu, Mathematics Dept; 129 Austin Building; East Carolina University; Greenville; NC 27858; USA; Tel: 919 328 1896; Fax: 919 328 6414

Hurrell, Derek, Derek.Hurrell@nd.edu.au. School of Education, University of Notre Dame Australia, PO Box 1225, Fremantle, WA 6959, Tel: +61 8 9433 0181, Fax: +61 8 9433 0160.

Hussein, Hisham, hbisher@hotmail.com, Department of Curriculum and Instruction; College of Teachers; King Saud University; Riyadh;Saudi Arabia; Mobil: (+966) 5 0551 4695; Fax (+966) 1 2088392 Ext 111, http://faculty.ksu.edu.sa/74637

Huylebrouck, Dirk, Huylebrouck@gmail.com, Department for Architecture Sint-Lucas, Paleizenstraat 1030, Brussels, Belgium, (+32) (0) 2 242 0000, http://etopia.sintlucas.be/3.14/

Hyde, Rosalyn, r.m.hyde@soton.ac.uk, University of Southampton School of Education; Highfield; Southampton; SO17 1BJ; UK; Tel: +44 (0)23 8059 9217 http://www.crme.soton.ac.uk

Iannone, Paola, p.iannone@uea.ac.uk, School of Education and Lifelong Learning, University of East Anglia; Norwich NR4 7TJ; UK; Tel: 01603 591007; Fax: 01603 593446

Ikiz, Ali, aikiz@uncfsu.edu, Department of Mathematics and Computer Science (Mathematics Education), College of Arts and Sciences, Fayetteville State University, 1200 Murchison Rd, Fayetteville, NC 28301, USA, Office Phone: (+1) 910-672-2054 or (+1) 423-ikizali, Fax: (+1) 910-672-1070, http://www.ikizali.com

Ineson, Gwen, gwen.ineson@brunel.ac.uk, Department of Education, Brunel University London, Uxbridge, Middlesex UB8 3PH, UK, (+44) (0) 1895 265 865, Fax: (+44) (0) 1895 269 805, http://www.brunel.ac.uk/people/gwen-ineson Ingram, Jenni, Jenni.Ingram@warwick.ac.uk, Institute of Education, University of Warwick, Coventry CV4 7AL, (+44) (0)24 76522852

Innabi, Hanan, hinnabi@qu.edu.qa Educational sciences Department, School of Education, Qatar University, (+974) (30) 453371. hinnabi@yahoo.com, Amman, P.O.BOX 7559, +96265661275

Ipiña, Lynne, ipina@uwyo.edu, Department of Mathematics, 1000 E. University, Laramie, Wyoming 82071, USA mobile 1-307-760-1681

Irons, Cal, c.irons@qut.edu.au, School of Mathematics, Science and Technology Education; Queensland University of Technology; Locked Bag No.2; RED HILL 4059; Queensland; Australia; Tel: +617 7 3864 5559; Fax +617 7 3864 3985

Irons, Rosemary, r.irons@qut.edu.au, School of Mathematics, Science and Technology Education; Queensland University of Technology; Locked Bag No.2; RED HILL 4059; Queensland; Australia; Tel: +617 7 3864 3136; Fax +617 7 3864 3985

Irwin, Kathryn, K.IRWIN@AUCKLAND.AC.NZ, Education Department; University of Auckland; Auckland; New Zealand; tel +64 9 373 7599 ext 8201; fax +64 9 373 7455

Ismael, Abdulcarimo, ismael@fcnmup.uem.mz, Departamento de Matematica; Universidade Pedagogica; C.P. 3276; Maputo, Mozambique.

Ismail, Zaleha, p-zaleha@utm.my, drzaleha2@yahoo.com, Universiti Teknologi Malaysia, Faculty of Education, Johor Bahru, 81310 Johor. Malaysia, (+06)(0127702490)

István Lénárt, ilenart@cs.elte.hu , istvan.lenart@lenartsphere.com , Eötvös Loránd University, Faculty of Natural Sciences, H-1117 Pázmány Péter sétány 1/C, Budapest, Hungary, +36-70-227-1203, +36-1-372-2500/ext. 8534, http://mathdid.elte.hu/html/snemeukl.html

Ives, Sarah E.; sarah.ives@csus.edu; California State University, Sacramento, Undergraduate Studies - Math Learning Skills, College of Education, 6000 J St., Sacramento, CA 95819, USA; (916) 278-3552; http://www.csus.edu/coe/faculty/profiles/ives-sarah.html

Iyekekpolor, Solomon Abogunde Osabohien, iyekesol2010@yahoo.com Department of Science Education, Faculty of Education, Taraba State University, PMB1167, Jalingo-Nigeria, +2348034493726, +2348095376565

Izmirli, Ilhan M., iizmirl2@gmu.edu, Department of Statistics Volgenau School of Information Technology and Engineering, George Mason University 4400 University Drive MS 4A7 Fairfax VA 22030 - 4444, (703) 993 - 5168, (703) 993 – 1700

van Jaarsveld; Pete, primeset@mweb.co.za or pete@chec.ac.za, Cape Higher Education Consortium (SAILI PROJECT); 46 Rouwkoop Road; Rondebosch 7700; South Africa; Tel: +27 21 6597168; +27 21 5322186; Fax: +27 21 6597176

Jackson, Colin, colinfjackson@hotmail.com , 20 Lawson Road, Sheffield, S10 5BW, 01142666399Jafarabadi, Ali, jafarabadi@gmail.com, Department of Mathematical science, Shahid Beheshti University, Tehran, Iran,

Jacobs, Gerrie J, gerriej@embury.ac.za , Embury Institute for Higher Education PostNet Suite 042 Private Bag X81 Halfway House South Africa 1685, +27829000805, www.embury.ac.za

Jahanshahi.Mohammad, jahanshahi@azaruniv.edu ,Dept of Mathematics- Azarbayjan Tarbiat Moallem University, 35 km Tabriz-Maragh Road ,P.O.Box 53714-161, Tabriz/IRAN,Tel fax: +98-412-4327541 or Mobil +98-09143149385, http://www.azarunive.edu/~jahanshahi

Jakobsen, Arne, arne.jakobsen@uis.no , University of Stavanger; Department of Education; 4036 Stavanger; Norway; Tel (+47) 51 83 35 47, Fax: (+47) 51 83 34 50

Jakubowski, Elizabeth, ejakubow@garnet.acns.fsu.edu, Florida State University; Department of Curriculum and Instruction; 209 MCH; Tallahassee, Florida 32306; USA; Tel: 1 850 644 0365; Tel: 1 850 644 2725

Jamah, Jr., Tokpa Darwolo, tokpa@aims-cameroon.org, Academic Consortium Combating Ebola in Liberia VP Road Congo Town, Liberia, +231770339307.

Jameson, Ellen, ellen.jameson@cambridgemaths.org, Cambridge Mathematics, The Triangle Building, Shaftesbury Road, Cambridge CB2 8EA, +44 1223 376313, www.cambridgemaths.org

Jančařík, Antonín, antonin.jancarik@pedf.cuni.cz, Department of Mathematics and Mathematical Eduction, Faculty of Education, Charles University in Prague, M.D. Rettigove 4, 116 39 Praha 1, Czech Republic, (+420) 221900252, Fax: (+420) 221900248 http://kmdm.pedf.cuni.cz

Jarraud, Pierre, jarraud@sesame.mathp6.jussieu.fr, Université Pierre et Marie Curie; Mathématiques Case 172; 4 Place Jussieu ; 75252 Paris CEDEX 05; FRANCE; Tel: +33 (1)4427 5449; Fax: +33 (1)4427 5335

Jarvis, Daniel, danj@nipissingu.ca, Nipissing University; 100 College Dr., North Bay, ON Canada P1B 8L7; Tel: 705 474 3461 x 4445; Fax: 705 474 1947; http://www.nipissingu.ca/faculty/danj/

Jasper, Bill, jasper@shsu.edu, Mathematics and Statistics Dept. Sam Houston State University Huntsville Tx 77341-2206, 936-294-1575

Jaworski, Barbara, b.jaworski@lboro.ac.uk , Loughborough University, LE11 3TU, UK, +44 (0) 1509 228254

Jaworski, John, j2@oupc.bbc.co.uk, BBC/Open University Production Centre; Walton Hall; Milton Keynes MK7 6BH; UK; Tel: 01908 655442 (ans); Fax: 01908 655300

Jessen, Britta; britta.jessen@ind.ku.dk; University of Copenhagen, Dept. of Science Education, Øster Voldgade 3, 1350 København K, Denmark; +45 35 32 03 63; http://www.ind.ku.dk/ansatte-automatisk-liste/?pure=da/persons/220429

Jirotková, Darina, darina.jirotkova@pedf.cuni.cz, Department of Mathematics and Mathematical Eduction, Faculty of Education, Charles University in Prague, M.D. Rettigove 4, 116 39 Praha 1, Czech Republic, (+420) 221900252, Fax: (+420) 221900248 http://kmdm.pedf.cuni.cz

Jobin, Gilles, jgilles@synapse.net, 135 rue Lorrain; Buckingham; Quebec J8L 1R3; Canada; Tel: ??; Fax: ??; http://www.synapse.net/~euler/maths/mathsggj.htm

Joel, Gareth, g.joel@uea.ac.uk, School of Education and lifelong learning, Faculty of Social Sciences, University of East Anglia, Norwich NR4 7TJ, UK, (+44) (0) 1603 591451, Fax: (+44) (0) 1603 593446, www.uea.ac.uk/edu

Johannesen, Kyrre, Kyrre.Johannesen@hint.no, Hoegskolen i Nord-Troendelag; avd. for allmennl-utd; (Nord-Troendelag College.); Roestad; 7600 Levanger; Norway; Tel: +(47) 740 12722; Fax: (+47) 740 12721

Johansson, Bengt, bengt.johansson@ncm.gu.se, Goteborg University, National Center for Mathematics Education (NCM), Vera Sandbergs allé 5 A, S-412 96 Göteborg, Sweden, (+46) (0)31 7862287, Fax: (+46) (0)31 7862200, http://ncm.gu.se

Johansson, Helena, helena.johansson@miun.se, Department of Mathematics and Science Education; Mid Sweden University; SE-851 70 Sundsvall; Sweden; Tel: +46 (0)10 142 85 13; http://helenajohansson.net

Johnson, Art, johhsonart@aol.com, School of Education, Boston University, Boston, MA 02115, USA (401)921.3640

Johnson, Jason, jdjmath@yahoo.com or jdjohnso@mtsu.edu, Department of Mathematical Sciences, College of Basic and Applied Scienes, Middle Tennessee State University, P. O. Box 34, Murfreesboro, TN 37132, 615 898 2053, Fax: 615 898 5422

Johnson, Pete, johnsonp@easternct.edu, Mathematics and Computer Science Department, Eastern Connecticut State University, 83 Windham St., Willimantic, CT, 06226, USA, (860) 465 5511, Fax: (860) 465 4614

Johnson, Sylvia, S.M.Johnson@shu.ac.uk, Mathematics Centre; School of EIT; Sheffield Hallam University; Pond St; Sheffield S1 1W; UK; Tel +44 (0)114 2533262

Johnston-Wilder, Sue, _sue.johnston-wilder,@warwick.ac.uk_, Institute of Education; University of Warwick; Coventry CV4 7AL; UK; (+44) (0) 24 7652 3813; Fax: (+44) (0) 24 7652 4177;
http://www2.warwick.ac.uk/fac/soc/wie/staff/teaching-research/johnston-wilders

Johnston-Wilder, Peter, peter.johnston-wilder@warwick.ac.uk, Institute of Education, University of Warwick, Coventry, CV4 7AL; Tel. +44 (0)24 76522702

Johnston, Betty, Betty.Johnston@education.uts.edu.au, School of Adult Education; University of Technology Sydney; PO Box 123 Broadway; NSW 2007; Australia; Tel: 61 (0)2 330 3913; Fax: 61 (0)2 330 3939

Jones, Keith, D.K.Jones@soton.ac.uk, University of Southampton School of Education; Highfield; Southampton; SO17 1BJ; UK; Tel: +44 (0)23 8059 2449 http://www.crme.soton.ac.uk

Jones, Lesley, aea01lgj@gold.ac.uk, Dept of Educational Studies; Goldsmiths University of London; New Cross; London SE14 6NW; UK; Tel: 44 (00171 919 7306; Fax: 44 (0)171 919 7313

Jones, Sonia, sonia.Jones@sihe.ac.uk , Centre for Research in Education; School of Education; Swansea Institute of Higher Education; Townhill Road; Swansea SA2 0UT; Tel: 01792 482026

Jongsma, Calvin, jongsma@dordt.edu, Mathematics Department, Dordt College, Sioux Center, Iowa 51250, USA, Tel: 1-712-722-6307

Joubert, Marie, marie@seagreen.co.uk, 45 St Matthews Road, Bristol, BS6 5TU, UK, +44-7917221406Kennewell, Steve, s.e.kennewell@swansea.ac.uk, University of Wales Swansea; Department of Education; Hendrefoelan; Swansea SA2 7NB; Wales; UK; Tel: (+44) (0)1792 201231; Fax: (+44) (0)1792 290219

Joutsenlahti, Jorma, Jorma.joutsenlahti@uta.fi, Faculty of Education; University of Tampere; Åkerlundinkatu 5; 33014 University of Tampere; FINLAND; +358 40 190 4171 (office)

Julie, Cyril, cjulie@education.uwc.ac.za, Faculty of Education; University of the Western Cape; Private Bag X117; 7530 Bellville; South Africa; Tel: +27 21 9592861; Fax: +27 21 959 3358

Junqueira, Karen Elize, zandk@vodamail.co.za or junqueirake@ufs.ac.za , University of the Free State, South Campus, Church Street, Bloemfontein, South Africa, 9301, +2751 422 4200, +2782 4363 466

Junor Clarke, Pier A., pjunor@gsu.edu, Department of Middle and Secondary Education, College of Education, Georgia State University, P.O. Box 3978, Atlanta, GA, USA 30302-3978, 404-413-8411.

Jurdak, Murad, jurdak@aub.edu.lb, Department of Education, American University of Beirut, P.O. Box: 11-0236, Beirut: Riad El-Solh 1107 2020, Lebanon, 961-1-350000 ext. 3075, Fax: 961-1-744461, URL: http://www.aub.edu.lb/fas/dep/faculty/Murad_Jurdak/Pages/index.aspx

Kaahwa, Janet, jbkaahwa@yahoo.com ,Department of Science and Technical Education, School of Education, Makerere University, P. O.Box 7062, Kampala, Uganda, 256 712526636

Kagori, Paul Njoroge, paulkagori@gmail.com/paul.nj.kagori@aims-senegal.org, Mathematics Research Graduate, P.O. Box 787-00216, Githunguri, Kenya +254723710256/+254755411195, https://www.linkedin.com/in/paul-kagori-58202412b/

Kainan, Lisa, LisaK@dyellin.ac.il, Dept. of Math and Physics Education, David Yellin Teachers College, Jerusalem, Israel

Kaino, Luckson, muganyizikaino@gmail.com; P.O.Box 62603, Dar es salaam, TANZANIA.

Kaminski, Eugene,eugene.kaminski@acu.edu.au, School of Education, Australian Catholic University, McAuley Campus Banyo Brisbane 4014, Tel: + (61) (7) 38557155; Fax: + (61) (7) 38557247

Kanes, Clive, C.Kanes@mailbox.gu.edu.au; Faculty of Education, Griffith University; Q4111; Australia; Tel: 61 7 3875 5830; Fax: 61 7 3875 6868

Karim, Nakhshin, nakhshin_karim@zu.ac.ae, Department of Mathematics & Statistics, University College, Zayed University, P.O. Box 4783, Abu Dhabi, UAE, 00971504442807

Karlsen, Lisbet, lisbet.karlsen@hive.no, Vestfold University College, Postboks 2243, N-3103 Tønsberg, Norway, (+47) 33 03 14 42, Mob: (+47) 92 25 26 47, Fax: (+47) 33 03 13 50

Kastanis, Nikos, nioka@math.auth.gr , Department of Mathematics, Faculty of Sciences, Aristotle Univ. of Thessaloniki, Thessaloniki, 541 24, Greece, ++ 2310 997957, http://users.auth.gr/~nioka/index.en.htm

Keijzer, Ronald, r.keijzer@hs-ipabo.edu, Jan Tooropstraat 136 1061 AD Amsterdam The Netherlands, +3120 6137079

Kennewell, Steve, s.e.kennewell@swansea.ac.uk, University of Wales Swansea; Department of Education; Hendrefoelan; Swansea SA2 7NB; Wales; UK; Tel: (+44) (0)1792 201231; Fax: (+44) (0)1792 290219

Keane, Dorothy, dkeane@calstatela.edu, Division of Curriculum and Instruction; California State University, Los Angeles CA; 90032; U.S.A.; Tel: 1 323 343 4350; Fax: 1 343 5468.

Keen, Virginia (Ginny), keenvirl@notes.udayton.edu, Department of Mathematics, College of Arts and Sciences, University of Dayton, Dayton, OH 45469-2316, USA, (001) 937 229 2033, Fax: (001)937 229 2566, http://academic.udayton.edu/vlkeen/

Kent, Phillip, p.kent@ic.ac.uk, Mathematics Department; Imperial College; 180 Queen's Gate; London SW7 2BZ; U.K.; Tel: +44 (0)171 594 8503; Fax: +44 (0)171 594 8517

Kepner, Henry, kepner@uwm.edu, University of Wisconsin-Milwaukee, 4211 N. Prospect Ave, Milwaukee, WI 53211, USA; 414-332-2576

Kerslake, Daphne, dkbris@dkbris.demon.co.uk, 4 Castle Close; Henbury; Bristol BS10 7QU; UK; Tel/Fax: (+44) (0)117 950 6218

Khuzwayo, Herbert, Faculty of Education, University of Zululand, Private Bag X1001, Kwadlangezwa, 3886. South Africa. Tel. No. 27 35-9026542, Fax: 27 35 9026842, email: hbkhuzw@pan.uzulu.ac.za

Kidman, Gillian, g.kidman@qut.edu.au, Centre for Mathematics, Science and Technology Education; Queensland University of Technology; Locked Bag No. 2; Red Hill Q 4059; AUSTRALIA; Tel: 61 7 386 43967; Fax: 61 7 386 43643

Kieran, Carolyn, Département de mathématiques, Université du Québec à Montréal, Case postale 8888, succursale Centre-Ville, Montréal (Québec) H3C 3P8, Canada, Telephone: (514) 987-3000, ext. 7793# (office. Fax: (514) 987-8935, kieran.carolyn@uqam.ca, kieran-sauve.carolyn@uqam.ca , http://www.math.uqam.ca/

Kilpatrick, Jeremy, jkilpat@coe.uga.edu, University of Georgia, 105 Aderhold; Athens; Georgia; 30602-7124; USA; Tel: (+1) 706 542 4163; Fax: (+1) 706 542-5010 or -4551

Kim, Ok-Kyeong, ok-kyeong.kim@wmich.edu, Department of Mathematics, Western Michigan University, 1903 W. Michigan Avenue, Kalamazoo, Michigan, 49008-5248, USA, (1) 269-387-4392, Fax: (1) 269-387-4530

King, Lonnie, cenlck@upe.ac.za; Department of Science; Mathematics and Technology Education; University of Port Elizabeth; PO Box 1600;ort Elizabeth; 6000 South Africa; Tel: +27 41 504 4020; Fax: +27 41 582 1000.

King, Samuel, _S.O.King@lboro.ac.uk_, Mathematics Education Centre, Loughborough University, Loughborough LE11 3TU, UK, (+44) (0) 150 922 8212, Fax: (+44) (0) 150 922 8211, http://mec.lboro.ac.uk/pages/people/sok.html

Kirfel, Christoph, christoph.kirfel@math.uib.no, Matematisk institutt, Joh. Brunsgt. 12, N-5008 Bergen, Norway, (+47) 55 58 48 73, Fax: (+47) 55 58 96 72

Kirshner, David, dkirsh@lsu.edu, 103 Peabody Hall; Department of Educational Theory Policy and Practice; Louisiana State University; Baton Rouge LA 70803-4728, (225) 578-2332; http://coe.ednet.lsu.edu/coe/faculty_staff/ETPP/kirshner_david.html

Kissane, Barry, b.kissane@murdoch.edu.au, School of Education, Murdoch University, Murdoch; Western Australia 6150; Australia; Tel: +61 (0) 8 6114 3073; Mob: +61 (0) 412 839 834; http://wwwstaff.murdoch.edu.au/~kissane

Klaveness, Elise, elise.klaveness@hive.no, Department of Education, Vestfold University College, Boks 2243, N 3103 Tonsberg, Norway, (+47) 3303 1419, Fax: (+47) 3303 1350, http://www-lu.hive.no/matte/HjemmesideEliseKlaveness.htm

Klein, Georgianna, kleing@GVSU.EDU, Mathematics/Statistics Dept.; Grand Valley State University; Allendale; Michigan 49401; USA; W (616) 895-2040 or 895-2063; H (616) 453-8619; FAX (616) 895-3506

Kleve, Bodil, bodil.kleve@lui.hio.no, Oslo University College, Faculty of Education and International Studies, Pilestredet 52, Postbox 4, St. Olavs pl. N-0130 Oslo, Norway, (+47) 22 45 21 87, Fax: (+47) 22 45 21 35

Klisinska, Anna Anna.Klisinska@ltu.se, Department of Mathematics; Luleå University of Technology; S-97187 Luleå; Sweden; Tel: +46 (0) 920 491035; Fax: +46 (0) 920 491073, http://www.ltu.se/inst/mat/staff/annkli

Kloppers, Magda. Magda.Kloppers@nwu.ac.za Faculty of Humanities, School of Education Sciences, North-West University, Vaal Triangle Campus, Private Bag X 1174, Vanderbijlpark, 1900. tel: +27 16 910 3084; fax: +27 16 910 3078

Klymchuk, Sergiy, sergiy.klymchuk@aut.ac.nz, School of Computing and Mathematical Sciences; Faculty of Design and Creative Technologies; Auckland University of Technology; Private Bag 92006; Auckland 1142; New Zealand; Tel: +64 9 921 9999 ext.8431; Fax: +64 9 921 9944.

Knights, Carol c.knights@chi.ac.uk Principal Lecturer in Mathematics Education, The Mathematics Centre, University of Chichester, Bognor Regis Campus; Upper Bognor Road; Bognor Regis PO21 1HR; UK; Tel: +44 (0)1243 812078 http://www.chiuni.ac.uk/teachered/StaffCarolKnights.cfm

Knoll, Eva, eva.knoll@msvu.ca, Faculty of Education, Mount Saint Vincent University, 166 Bedford Highway, Halifax, Nova Scotia, B3M 2J6, Tel: 902-457-6504, Fax: 902-457-4911. www.msvu.ca/Education/faculty/eknoll.asp

Kongelf, Tom Rune, tom.rune.kongelf@hisf.no , Sogn og Fjordane University College, Faculty of Teacher Education and Sports, Pb. 133, NO- 6856 Sogndal, Norway, Tel. (+47)57676337, Fax. (+47)57676051, http://www.hisf.no/no/ansatt/vis/tom.rune.kongelf

Konold, Clifford, konold@srri.umass.edu, Scientific Reasoning Research Institute; Hasbrouck Laboratory; University of Massachusetts; Amherst; MA 01003; USA; Tel: 413 545 5886; Fax: 413 545 1691.

Koolstra, Gerard, gerardk@xs4all.nl, Rozeboom 19; 1541 RH KOOG AD ZAAN;The Netherlands; Tel: +31 075 616464; Fax: +31 075 6164581; http://www.xs4all.nl/~gerardk

Kortesi, Peter, pkortesi@gmail.com, matkp@uni-miskolc.hu, Institute of Mathematics, University of Miskolc, Miskolc-Egyetemváros, H 3515 Miskolc, Hungary, (+36) (20) 9 826 766, Fax: (+36) (46) 565146, http://www.uni-miskolc.hu/~matkp

Kosheleva, Olga, olgak@utep.edu, The University of Texas at El Paso, Dept. of Teacher Education, Edu. 601, 500 W. University Avenue, El Paso, TX 79968, USA, +1-915-747-7588.

Kotsopoulos, Donna, dkotsopo@wlu.ca, Wilfrid Laurier University; 75 University Avenue West; Waterloo ON Canada N2L 3C5; Tel: 519 884 1970; FAX 519 884 8697

Krainer, Konrad, konrad.krainer@uni-klu.ac.at, Interuniversitaeres; Institut fuer Interdisziplinaere Forschung und Fortbildung (IFF); Sterneckstrasse 15; A-9020; Klagenfurt; Austria; Tel: +43 463 2700-738; Fax: +43 463 2700 759; http://www.uni-klu.ac.at/iff/schule

Kristiansen, Gunnar, gunnar.kristiansen@uit.no, University of Tromsø, ILP, Mellomveien 110, N-9293 Tromsø, (+47) 77 66 04 34

Kristjánsdóttir, Anna, annak@hi.is, University of Iceland, Stakkahlíð; IS-105, Tel: (+47) 95185797

Kristinsdóttir, Jónína Vala joninav@hi.is, University of Iceland, School of Education, v/Stakkahlíð, 101 Reykjavík, Iceland(+354) 5255511

Küchemann, Dietmar, dietmar.kuchemann@kcl.ac.uk, King's College London, Department of Education and Professional Studies, Franklin-Wilkins Building, Waterloo Bridge Wing, 150 Stamford Street, London SE1 9NH, UK

Kula, Fulya, fkula@metu.edu.tr, Secondary Science and Mathematics Education, Faculty of Education, Middle East Technical University, Ankara, Turkey, (+90) 312 210 36 86

Kung, David, dtkung@smcm.edu, Mathematics and Computer Science Department, St. Mary’s College of Maryland, St. Mary’s City, MD 20686, USA, (+1) 240 895 4433, http://www.smcm.edu/mathcs/

Kuntze, Sebastian, kuntze@ph-ludwigsburg.de <mailto:wagner02@ph-ludwigsburg.de>, Institut für Mathematik und Informatik, Pädagogische Hochschule Ludwigsburg (Ludwigsburg University of Education), Reuteallee 46, 71634 Ludwigsburg, Germany, (+49)(0)7141/140826, http://www.ph-ludwigsburg.de/wp/kuntze/ <http://www.ph-ludwigsburg.de/3951.html>

Kuper, Carol, carol.kuper@morgancc.edu, Mathematics Department, Morgan Community College, 920 Barlow Road, Fort Morgan, CO 80701; USA; Telephone 970-542-3202; Fax 970-542-3115

Kurta, Jon, jonkurta@bunning.netkonect.co.uk, Froebel College; Roehampton Institute of Education; London SW15; UK; Tel +44 (0)181 392 3494 (Work)

Kuteeva, Galina, g.kuteeva@spbu.ru, Department of Theoretical and Applied Mechanics, Faculty of Mathematics and Mechanics,
St. Petersburg State University, 28 University Ave., 198504, Peterhof, St. Petersburg, Russia, +7 812 4284165

Kvamme, Aasmund, akv@hib.no, Bergen University College, PO Box 7030, N-5020 Bergen, Norway, (+47)55 58 77 09

Laine, Anu, anu.laine@helsinki.fi, Faculty of Educational Sciences, Siltavuorenpenger 5, FIN-00014 University of Helsinki, FINLAND, +358405704581, https://tuhat.helsinki.fi/portal/en/persons/anu-laine(68283f60-8cbb-4659-93e8-1f4a27b0136a).html

Lamb, Janeen, janeen.lamb@acu.edu.au , School of Education, Australian Catholic University, McAuley Campus, Brisbane 4014, Australia, Ph: (61) (07) 3623 7318, Fax: (+61) (07) 3623 7247

Lambdin, Diana, lambdin@indiana.edu, School of Education; Indiana University; Bloomington; IN 47405 USA; Tel: 812 856-8149; Fax: 812 856-8440; http://education.indiana.edu/~edci/lambdin.html

Lapinid, Minie Rose, mrlapinid@yahoo.com, Science Education Department, De La Salle University, 1608 Andrew Gonzales Building, Taft Avenue, Malate, Manila, 1004, Philippines, Tel/Fax (+63) (2) 5360232

Lapp, Douglas A., lapp1da@cmich.edu, Department of Mathematics, Central Michigan University, 214 Pearce Hall, Mount Pleasant, MI 48859, USA, (001) 989 774 5393, http://www.cst.cmich.edu/users/lapp1da

Laridon, Paul, pel@cosmos.wits.ac.za, Mathematics Department; University of the Witwatersrand; P O Wits; 2050 Johannesburg; South Africa; Tel: +27 11 716 2822; Fax: +27 11 339 1054

Larkin, Kevin. k.larkin@griffith.edu.au, Griffith Institute for Educational Research, School of Education and Professional Studies, Griffith University, Gold Coast campus, Gold Coast, Queensland 4222, Australia, (+61) (0)7 55529783, Fax: (+61) (0)7 55528599, https://experts.griffith.edu.au/academic/k.larkin

Lang, Frances, flang@calstatela.edu, Division of Curriculum and Instruction; California State University, Los Angeles CA; 90032; U.S.A.; Tel: 1 323 343 4350; Fax: 1 343 5468.

Lau, Hang, hang.lau@mcgill.ca, School of Continuing Studies, McGill University, 688 Sherbrooke Street West, Montreal, Quebec, H3A 3R1, CANADA, Phone - 514 398 2522, Fax - 514 398 3108

Laughbaum, Ed, elaughba@math.ohio-state.edu, The Ohio State University, Department of Mathematics, 231 West 18th Avenue, Columbus, OH 43210, USA, (614) 563-1835, (480) 287-9546 Personal Fax, http://www.math.ohio-state.edu/~elaughba/

Laulala, Lance, llaulala@unitec.ac.nz, Te Puna Ako Learning Centre, Unitec Private Bag 92025, Auckland, New Zealand, ph 64 9 815 4321 ext 8657

Lavaring, Bryant, b.lavaring@nepean.uws.edu.au, Faculty of Education; University of Western Sydney; Nepean; PO Box 10; Kingswood 2747; Australia; Tel: +61 4736 0247; Fax: +61 4736 0400

Lavicza, Zsolt, zl221@cam.ac.uk , Faculty of Education, University of Cambridge, 184 Hills Rd, Cambridge, CB2 8PQ, UK, +44 7962 488 222 (UK), +36 20 587 7847 (Hungary); http://www.educ.cam.ac.uk/people/staff/lavicza/ ; http://www.geogebra.org/

Lebeta, Tseliso, Vincent, vincent.lebeta@up.ac.za: Department of Science, Mathematics and Technology Education, University of Pretoria, Leyds Street Groenkloof Campus: Pretoria: South Africa: Tel:+27 12 4205632, Fax: +27 12 4205621

Leder, Gilah, edugl@lure.latrobe.edu.au., Graduate School of Education; La Trobe University; Bundoora; Vic. 3083; Australia; Tel: +61 3 9479 2842; Fax: +61 3 9479 3070; http://www.latrobe.edu.au/www/mathed/gilahleder.html

Leggett, Diane, dleggett@kns.school.nz, Karori Normal School, Donald Street, Karori, Wellington, New Zealand 6012, (+64) (4) 476 7209

Leigh-Lancaster, David, leigh-lancaster.david.d@edumail.vic.gov.au , Victorian Curriculum and Assessment Authority; 41 St Andrews Place, East Melbourne, Victoria, 3002 Australia ; (+61) (3) 9651 4537; Fax: (+61) (3) 9651 4324; http://www.vcaa.vic.edu.au

León, Olga, olleon@udistrital.edu.co, Educación Matemática en la Universidad Distrital Francisco José de Caldas, Bogotá, tel 3239300 ext 6330-6334
http://die.udistrital.edu.co

Lerman, Stephen, lermans@lsbu.ac.uk, Department of Education; London South Bank University; 103 Borough Road; London SE1 0AA; UK; (+44) (0)20 7815 7440; Fax: (+44) (0)20 7815 8160; https://sites.google.com/site/lermansteve/home

Le Roux, Kate, kate.leroux@uct.ac.za, Numeracy Centre, University of Cape Town, South Africa

Lesser, Larry, Lesser@utep.edu, 500 W. University Avenue, Dept. of Mathematical Sciences, The University of Texas at El Paso, El Paso, TX, (915) 747-6845, http://www.math.utep.edu/Faculty/lesser/

Lester, Frank, lester@indiana.edu, 2600 E Fairoaks Lane, Bloomington, IN, USA 47401, 812-345-6196.

Leveille, Nancy, leveillen@uhd.edu Computer and Mathematical Sciences Department; University of Houston-Downtown; One Main Street; Houston,Texas 77002; U.S.A.; Tel: 713-221-2723; FAX: 713-221-8086 http://cms.uhd.edu/Faculty/LeveilleN

Lewis, Ed, e.lewis@castle.acu.edu.au, Department of Mathematics, Science and Technology Education; Australian Catholic University (Castle Hill Campus); Old Northern Road; Castle Hill; NSW; Australia 2154; Tel + 61 2 7392886; Fax: + 61 2 739 2805

Liebenberg, Rolene, roleneliebenberg@telkomsa.net, School Partnerships - Community Interaction Division, University of Stellenbosch T: +27 21-808 3645, F: +27 21-808 2976 (now roleneliebenberg@telkomsa.net, Community Interaction, University of Stellenbosch - information from Alwyn Olivier)

Lilland, Inger Elin, iel@hib.no,Bergen University College, Pb. 7030, N-5020 Bergen, Norway, (+47) 55 58 57 56

Lim, Kien H., kienlim@utep.edu, Department of Mathematical Sciences, The University of Texas at El Paso, 500 W. University Ave, El Paso, TX 79968-0514, 1-915-747-6772, http://www.math.utep.edu/Faculty/kienlim/

Linchevski, Liora, liora@vms.huji.ac.il, School of Education; Hebrew University; Mount Scoups; Jerusalem; 91905; Israel; Tel: 972 2 881199; Fax: 972 2 617673

Lindberg, Lisbeth, Lindberg.Lisbeth@ped.gu.se, Göteborg University Teachers College; Department of Mathematics Education; Box 1010; S-431 26 Mölndal; Sweden; Tel (+46) 31 773 2256; Fax (+46) 31 773 2281

Lindenskov, Lena, lenali@dpu.dk; Research Program for Subject Education, Department of Curriculum Research, The Danish University School of Education – Aarhus University; Emdrupvej 101; DK-2400 Copenhagen NV; DENMARK; Tel: +45 8888 9000, ext. 9686; Mobile: +45 2630 6681

Lingefjärd, Thomas, Thomas.Lingefjard@gu.se, University of Gothenburg, BOX 300, 405 30 Gothenburg, Sweden.

Linneweber-Lammerskitten, Helmut, helmut.linneweber@hispeed.ch, Vogelsang 55, 2502 Biel, Switzerland, +41 32 323 51 15,

Lins, Romulo, romlins@rc.unesp.br , Departamento de Matemática/Programa de Pós-graduação em Educação Matemática, Av 24A, 1515, 13506-900 Rio Claro-SP, Brazil, phone/fax: +55-19-3534 0123 (Deceased)

Lipkovski, Aleksandar T, acal@matf.bg.ac.rs, University of Belgrade-Faculty of Mathematics, Studentski trg 16, 11000 Belgrade, Serbia, +381 63 255 698

Lipovec, Alenka, alenka.lipovec@um.si, University of Maribor, Faculty of Education, Koroška c.160, 2000 Maribor, Slovenia, 0038641744363

Lithner, Johan, johan.lithner@umu.se, Umeaa University, Department of Science and Mathematics Education, 90187 Umeaa, Sweden, Tel: +46 90 7866908, https://www.umu.se/en/staff/johan-lithner/

Little, Richard, rlittle@bw.edu, 18105 Clifton Road , Lakewood, OH, 44107, USA, 216-529-0775, Retired Prof. of Math. at Baldwin Wallace U. Berea, Oh, 44017

Livy, Sharyn, sharyn.livy@monash.edu Faculty of Education, PO Box 527, Frankston, Vic 3199, Australia. Tel:+61 411727 448 https://research.monash.edu/en/persons/sharyn-livy

Llinares Salvador, sllinares@ua.es, Departamento de Innovacion y Formación Didáctica; Facultad de Educación; Campus de San vicente del Raspeig; Universidad de Alicante (España); Tel +34-965903400 ext 2490

Lloyd, Philip, philiplloyd1@gmail.com, Retired from Epsom Girls Grammar School, Auckland, New Zealand, http://www.phantomgraphs.weebly.com, http://knowingisnotunderstanding.weebly.com, http://calculusresources.weebly.com

Lloyd, Philip, philiplloyd1@gmail.com, Epsom Girls Grammar School, Auckland, New Zealand

Lo, Jane-Jane, jane-jane.lo@wmich.edu, Department of Mathematics; Western Michigan University; 1904 W. Michigan Ave. Kalamazoo, MI 49008-5248; USA; Tel: (269) 387-1080; Fax: (269) 387-0154

Lopez, Maria Jose Gonzalez, gonzalelm@unican.es , Departamento de Matematicas, Estadistica y Computacion, Universidad de Cantabria, 39005 Santander (Spain), Tel. +34 942 201524, Fax. +34 942 201402

Lorist, Peter, Peter.Lorist@feo.hvu.nl, Hogeschool van Utrecht; Faculty of Education; Department of Mathematics; P.O. Box 14007; 3508 SB Utrecht; The Netherlands; Tel +31 30 2547224; Fax +31 30 2517851

Lotze, Conrad; clotze@wgu.edu; Mathematics Program Coordinator; Western Governors University; 4001 South, 700 East, Suite 700, Salt Lake City, UT 84107, USA; Tel: (304) 724-7084.

Lovric, Miroslav, lovric@mcmaster.ca, Department of Mathematics and Statistics, McMaster University, Hamilton, Ontario L8S 4K1, Canada, (+1) (905) 525 9140 extension 27362, http://www.math.mcmaster.ca/lovric/lovric.html

Lowrie, Thomas, thomas.lowrie@canberra.edu.au, Centenary Professor, Faculty of Education and Director of STEM Education Research Centre, University of Canberra ACT 2601, Australia, +61 6201 2568, https://www.canberra.edu.au/about-uc/faculties/education/staff/tom-lowrie

Lowther, Matthew, M.S.Lowther@dcs.warwick.ac.uk, 37 Tachbrook Road; Leamington Spa; Warwickshire CV31 5DW; UK; Tel: +44 (0)1926 337241

Loy, Rick, rick.loy@maths.anu.edu.au, Department of Mathematics; School of Mathematical Sciences; Australian National University; Canberra ACT 0200; AUSTRALIA; Tel +61 6 249 2919; Fax +61 6249 4984

Lubinski, Cheryl; calubinski@mac.com; 517 Augumn Bluff Drive, Ellisville, MO, 63021, USA; (+1) 636-527-1860; FAX (+1) 636-527-4960

Ma, Li, ma_li@mac.com , Norwegian Academy of Education, Postboks 74, 5812 Bergen, Norway, Tel: +47 91249675

Maasz, Juergen, juergen.maasz@jku.at , Mathematics Education, Johannes Kepler University Linz, Altenberger Strasse 69, A - 4040 Linz, Austria, +43 0732/2468/6878, http://www.jku.at/idm/content/e82460/index_html?team_view=section&emp=e82460/employee_groups_wiss82461/employees238266

Mabuza, Timothy Oupa, tim.mabuza@gmail.com, Ukuqonda Institute for learning Mathematics and Science, PO Box 21864, Proteapark, Rustenburg 0305 , South Africa. Tel +27 14 592 1540 Fax: 086 697 8225

Mac an Bhaird, Ciarán, ciaran.macanbhaird@mu.ie, Department of Mathematics and Statistics, Maynooth University, Maynooth, Co. Kildare, Ireland, 00353(0)17083992, https://www.maynoothuniversity.ie/people/ciar-n-mac-bhaird, https://scholar.google.com/citations?user=h5LMxfkAAAAJ&hl=en&oi=ao

MacDougall, Margaret, Margaret.MacDougall@ed.ac.uk; Centre for Population Health Sciences, The Usher Institute of Population Health Sciences and Informatics, The University of Edinburgh Medical School, Teviot Place, Edinburgh, EH8 9AG; tel: 0131 650 3211 (office), 07532336805 (mobile); https://www.ed.ac.uk/profile/margaret-macdougall

Macey, Darren, darren.macey@cambridgemaths.org, Cambridge Mathematics, The Triangle Building, Shaftesbury Road, Cambridge CB2 8EA, +44 1223 376382, www.cambridgemaths.org

MacGregor, Mollie, m.macgregor@edfac.unimelb.edu.au, Department of Science and Mathematics Education; University of Melbourne; Parkville 3052; AUSTRALIA; Tel: +61 3 9344 8531; Fax: + 61 3 9344 8739.

Macmillan, Agnes, amacmillan@csu.edu.au, Faculty of Education; Charles Stuart University; PO Box 789; Albury 2640; Australia; Tel: +612 60516762; Fax: +61 2 516985

MacNamara, Ann, ann.macnamara@homecall.co.uk, Calvis Hall Thirsk YO7 4AB UK, 01845 525430

Maguire, Kevin, edukjm@lure.latrobe.edu.au, School of Education; Faculty of Social Science; La Trobe University; Bundoora ; Victoria 3083; Australia; Telephone: +61 3 9479 2080; Fax: +61 3 9479 3070

Major, Karen, k.major@auckland.ac.nz, Team Solutions, Faculty of Education, University of Auckland, Private Bag 9002, Whangarei 0140, New Zealand, (0064) (9) 470 1015, http://www.teamsolutions.ac.nz/

Makoshi, Abdullah, F20c007@ksu.edu.sa, Department of Curriculum and Instruction; College of Education; King Saud University; Riyadh; Saudi Arabia; Tel: (966) 468 3683; Fax (966) 467 4609; Research interests: Cognitive Development, Attitudes, Evaluation, Comparitive Studies.

Malaspina Jurado, Uldarico, umalasp@pucp.edu.pe , Depto. Ciencias-Matematicas, Pontificia Universidad Catolica del Peru, Av. Universitaria 1801, Lima 32, Peru, + 51 980123037.

Malaty, George, george.malaty@joensuu.fi, University of Eastern Finland,Joensuu Campus, P.O.Box 111, 80200 Joensuu, Finland, Tel.(+358) 13 251 2303, Fax (+358)13 2513564

Malone, John; j.malone@curtin.edu.au; STEM Education Research Group, Faculty of Education, Curtin University, Perth, Western Australia; +61 8 9266 2501; http://smec.curtin.edu.au/people/index.cfm/J.Malone

Mammana, Maria Flavia, fmammana@dmi.unict.it, Dipartimento di Matematica e Informatica, Università di Catania, Viale A.Doria 6, 95100 Catania (Italy), +39.095.738.3064

Mamona-Downs, Joanna, mamona@upatras.gr, Sector of Pedagogy, History and Philosophy of Mathematics, Department of Mathematics, University of Patras, Patras 265 00 Greece, (+30) 2610 996-741, Fax:(+30) 2610 996-753,

Manalac, Teresita R., trmanalac@yahoo.com, University of the Philippines National Institute for Science and Mathematics Education Development, Diliman, Quezon City, Philippines 1101, Tele/fax (+63)(2) 9283545

Manev, Krassimir, manev@fmi.uni-sofia.bg, Faculty of Mathematics and Computer Science, Sofia University, 5 J. Bourchier blvd., 1164 Sofia, Bulgaria, +359 887 253 211, http://www.fmi.uni-sofia.bg/bg/lecturers/cs/manev

Marchand, Patricia, patricia.marchand@usherbrooke.ca , Université de Sherbrooke, Faculté d’Éducation, 2500 boul. de l’Université, Sherbrooke, Qc, Canada, J1K 2R1, (819)-821-8000 #62435, fax : (819)-821-8230; http://creas.educ.usherbrooke.ca/membres/Fiches%20professeurs/Marchand.html

Maree, Gideon Jacobus, jgmaree@econ.up.ac.za, Department of Didactics; University of Pretoria, 001 Pretoria; South Africa; Tel: +27 12 420 2130; Fax: +27 12 342 2914

Mariotti, Andree, mariotti@tiac.net (Andree R. Mariotti), Parkville Community School;1755 Park St; Hartford; CT 06106; Tel:; Fax:

Marnocha, Peter, marnocha@edgewood.edu, Departments of Mathematics and Education; Edgewood College; 855 Woodrow Street Madison; Wisconsin USA 53711; Tel (608) 257 3487 ext. 3210; Fax (608) 257 1455

Marshall, Linda, l.marshall@ecu.edu.au, Edith Cowan University, Joondalup Drive, Joondalup, Western Australia, 6027; Australia: Tel (08) 6304 5954; Fax: 6304 5850.

Martin, Danny, dbmartin@uic.edu, University of Illinois at Chicago, Chicago, IL, 60607, 312.413.0304, http://education.uic.edu//directory/faculty_info.cfm?netid=dbmartin

Martin, Lyndon, L.Martin@kingston.ac.uk, Kingston University, School of Education, Kingston Hill, Kingston upon Thames; Surrey KT2 7LB; Great Britain; Tel: (+44) (0)181 547 2000 Ext: 5076

Martin, Susan, s.martin@bath.ac.uk, Department of Education, University of Bath, Bath BA2 7AY, (+44) (0) 122 538 6904

Martínez , Oswaldo, ommadail@gmail.com, Núcleo de Investigación en Educación Matemática “Dr. Emilio Medina” (NIEM), Departamento de Ciencia y Tecnología, Universidad Pedagógica Experimental Libertador, Instituto Pedagógico Rural El Mácaro [(UPEL- El Mácaro; Turmero, estado Aragua, Venezuela], 00584124794180

Martinez-Luaces, Victor, victoreml@fing.edu.uy, I.I.Q. Faculty of Engineering, University of the Republic of Uruguay, J.H. y Reissig 565, Montevideo, Uruguay (+598) (2) 3094532.

Martinovic, Dragana, dragana@uwindsor.ca , Faculty of Education, University of Windsor, 401 Sunset Ave. Windsor, ON N9B 3P4, Office: 3340, Tel: 519-253-3000 X 3962, Fax: 519-971-3694

Martins-Mourao, Antonio, a.mourao@ioe.ac.uk; Child Development & Learning; Institute of Education; University of London; 20 Bedford Way; London WC1H OAL; United Kingdom; Tel: +44 (0)171 612 6226; Fax: +44 (0)171 612 6230

Martinussen, Geir, Geir.Martinussen@lui.hio.no, Oslo University College, Pb 4 St Olavs plass, 0130 Oslo, Norway, (+47) 22452286

Masiba, Elizabeth. koketso-son@myway.com Department of Mathematics Education, Serowe College of Education, Private Bag 009, Serowe, Botswana, +267 4630448, +267 71850420

Masingila, Joanna, jomasing@syr.edu, Syracuse University, Department of Mathematics, 215 Carnegie, Syracuse, NY 13244-1150, USA, +1-315-443-1483

Mason, John, john.mason@open.ac.uk, 27 Elms Rd Oxford OX2 9JZ UK, PMTheta.com

Mason, Ralph, masonrt@mts.net, University of Manitoba Faculty of Education, 230 Education Building, University of Manitoba, Winnipeg, MB, R3T 2N2, Canada; tel 204 474-9086; fax 204 474 7550.

Måsøval, Heidi Strømskag, heidi.masoval@plu.ntnu.no, Norwegian University of Science and Technology, Programme of Teacher Education, N-7491 Trondheim, Norway, Tel. +47 73 59 05 31, Fax. + 47 73 59 10 12

Matos, Joao Filipe, joao.matos@fc.ul.pt, Departamento de Educacao; Faculdade of Ciencas; Universdade de Lisbon; Campo Grande; C1 - 2; 1700 Lisbo; Portugal; Tel:351-1-7500118; Fax: 351-1-7500082

Matos, José Manuel, jmm@mail.fct.unl.pt, Faculdade de Ciências e Tecnologia; 2825 Monte Da Caparica; Portugal; Tel: 351 1 295 4464; Fax: 351 1 294 8592

Maugesten, Marianne, marianne.maugesten@hiof.no, Østfold University College, Department of Education, Remmen, N-1756 Halden, Norway, (+47) 69 21 51 21, Fax: (+47) 69 21 51 02, http://www.lu.hiof.no/~mm

May, Bernie (Dov), berniedean@hotmail.com, PO box 23206, Ramot, Jerusalem, Israel 97290, ++972-52-7161-059

Mboyiya, Thandi, thandi@aardvark.ru.ac.za, RUMEP; St Peter's Building, 6140 Grahamstown; South Africa; Tel: +27 21 461 318166

McAuliffe, Sharon, mcauliffes@ctech.ac.za, Faculty of Education; Cape Technikon; PO Box 652; Cape Town 8000; South Africa; Tel: 021 6801528; Fax: 021 6801504

McCabe, Michael J. Schulich School of Education, Nipissing Unviversity. 50 Wellington St. Brantford Ontario, Canada, N3T 2L6 519-752-1524 x 7507 michaelm@nipissingu.ca

McClure, Lynne, lynne.mcclure@cambridgemaths.org, Cambridge Mathematics, The Triangle Building, Shaftesbury Road, Cambridge CB2 8EA, +44 1223 558874, www.cambridgemaths.org

McCrae, Barry, g.mccrae@edfac.unimelb.edu.au, Department of Science and Mathematics Education; University of Melbourne; Parkville 3052; AUSTRALIA; Tel: +61 3 9344 8531; Fax: + 61 3 9344 8739

McGlone, Chadd, Chadd@T2TGlobal.org., Teachers2Teachers Global; Chapel Hill, NC 27514; USA; (919) 923.6479, (919)808.4503, www.T2TGlobal.org.

McIntosh, Alistair, a.mcintosh@cowan.edu.au, Edith Cowan University; Department of Mathematics Education; Churchlands Campus; Pearson Street; CHURCHLANDS; WA 6018; Australia; Tel: (09) 273-8346; Fax: (09) 387 7095

McLeay, Heather, h.mcleay@bangor.ac.uk, School of Education; University of Wales Bangor Normal Site Bangor LL57 2PX; Great Britain; Tel: +44 (0)124 838 2937; Fax: +44 (0)124 838 3092

McLeod, Kevin, kevinm@uwm.edu, University of Wisconsin-Milwaukee, Department of Mathematical Sciences, 3200 N Cramer Street, Milwaukee, WI 53211, USA; +1-414-229-5269

McMaster, Heather, heather.mcmster@sydney.edu.au, Faculty of Education and Social Work (A35), The University of Sydney, NSW, 2006, Australia, +61- 2 9351 5989, Fax: +61-2 93512600, http://sydney.edu.au/education_social_work/about/staff/profiles/heather.mcmaster.php

McMurchy-Pilkington, Colleen, c.mcmurchy@auckland.ac.nz , University of Auckland, Te Puna Wananga, Faculty of Education, P B 92601, Symonds Street, Auckland, 1024, New Zealand, Ph 09 623 8899 Extn 48735, Fax 09 623 8897

Mdlalose, Dumisani, dumisani@malati.wcape.school.za, Mathematics Learning and Teaching Initiative; P.O. Box 647; Bellville; 7535 South Africa; Tel: +27 21 948 6644; Fax: +27 21 948 6686 (now dmdlalos@pgwc.gov.za, Western Cape Education Department - information from Alwyn Olivier)

Mendick, Heather, heathermendick@yahoo.co.uk, Department of Educational Studies, Goldsmiths College, University of London, Lewisham Way, London SE14 6NW, +44(0)2079197760, http://goldsmiths.academia.edu/HeatherMendick, www.londonmet.ac.uk/mathsimages, http://www.lancs.ac.uk/fass/events/mathematicalrelationships/index.htm

Menghini, Marta, marta.menghini@uniroma1.it, Dipartimento di Matematica, Sapienza Universita' di Roma, piazzale Aldo Moro 2, I - 00185 Rom, Italia, (+39) 0649913254, Fax: (+39) 0644701007, http://www.mat.uniroma1.it/ricerca/gruppi/education/

Merrick, Harry, merr-cs0@paisley.ac.uk, Department of Curricular Studies; University of Paisley; Craigie Campus;Beech Grove; Ayr; Scotland; KA8 0SR; Tel +44 (0)129 288 6311; Fax +44(0)129 288 6006

Merttens, Ruth, r.merttens@grid.unl.ac.uk>r.merttens@grid.unl.ac.uk, University of North London; School of Education; Humanities Faculty; 166-220 Holloway Road; London N7 8DB; U.K.; Tel. +(44) (0)164 728 1649

Mesa, Vilma, vmesa@umich.edu, 3119 SEB School of Education, University of Michigan, Ann Arbor, MI 48109-1259, USA, +1 (734) 647 0628, https://sites.google.com/a/umich.edu/vilma-mesa-s-website/home

Mesquita, Mônica, monimesquita@mare-centre.pt / harmoni4@mac.com ; MARE - Marine and Environmental Sciences Centre/Department of Environmental Sciences and Engineering/Faculdade de Ciências e Tecnologia/Universidade Nova de Lisboa, Campus da Caparica, 2829-516 Caparica - Portugal

Mewborn, Denise, dmewborn@coe.uga.edu, Mathematics Education Department; University of Georgia; 105 Aderhold Hall; Athens; GA 30602-7124; USA; Tel: 706 542 4194; Fax: 706 542 4551

Mezník, Ivan, meznik@fbm.vutbr.cz, Brno University of Technology, Kolejní 2906/4, 61200 Brno, Czech Republic, 420 541 142 604, 420 605 236 250

Middleton, James, jimbo@imap1.asu.edu, Department of Elementary Education; Arizona State University; Box 870911; Tempe, AZ; USA; Tel: (602) 965-0767; Fax: (602) 965-6604; http://seamonkey.ed.asu.edu/~jimbo/jimbo.html

Mhakure, Duncan, duncan.mhakure@uct.ac.za, Centre for Higher Education Development (CHED), Academic Development Programme: Numeracy Centre, University of Cape Town, Upper Campus, Private Bag X3, Rondebosch, 7701, South Africa. Telephone: (+27) (21) 650 5731

Míguez, Ángel, amiguez@una.edu.ve, Área de Educación mención Matemática, Universidad Nacional Abierta, piso 2, Av. Los Calvani Nº 18, San Bernardino, Caracas 1010, Venezuela, (+58) (212) 5552263, (+58) (412) 5649235

Mildenhall, Paula, p.mildenhall@ecu.edu.au, Edith Cowan University, Joondalup Drive, Joondalup, Western Australia, 6027; Australia: Tel + 61 (08) 6304 5954.

Miller, L. Diane, dmiller@mtsu.edu, Department of Mathematical Sciences, Middle Tennessee State University, Murfreesboro, TN 37132. Office: 615 898 2953. Fax: 615 898 5029. http://www.mtsu.edu/~dmiller

Miller-Reilly, Barbara, b.reilly@auckland.ac.nz, Mathematics Education Unit; Mathematics Department; University of Auckland; Private Bag 92019; Auckland; New Zealand; Tel: +64 (0)9 3737599 ext 8790; Fax: +64 (0)9 3737457

Millman, Richard, _richard.millman@ceismc.gatech.edu_,Center for Education Integrating Science, Mathematics, and Computing; Georgia Institute of Technology, Atlanta, GA USA 30332-0282; 001-404-894 6179 http://www.ceismc.gatech.edu/about/richardmillman.html.

Mills, Terence, t.mills@latrobe.edu.au, PO Box 214 Bendigo Vic. 3552 Australia, +61 3 54426740

Milton, Ken, Ken.Milton@utas.edu.au, University of Tasmania; School of Education (Hobart); Private Bag 66; Hobart Tasmania 7001; Australia; Tel: +61 3 62262271; Fax: +61 3 62267839

Mina, Fayez Mourad, fmmina@link.com.eg, Department of Curricula and Instruction, Faculty of Educaton, Ain Shams University, Roxy, Heliopolis, Cairo 11757 Egypt, ( 202 ) 2690 0278 and ( 2010 ) 681 3351.

Misra, Ram-Bilas, misrarb@rediffmail.com, Hardwari Shiksha Samiti (Hardwari Education Society) & Hardwari Institute of Science & Technology, Hardwari Nagar (Near Gola Gokarannath), Dist. Lakhimpur-Kheri, U.P. (India)(+91)(0)522 278 1820 /(mobile) +91-933-670-9475.

Mitchelmore, Michael, Mike.Mitchelmore@mq.edu.au, School of Education; Macquarie University; NSW 2109; Australia; Tel: +61 2 850 8655; Fax: +61 2 850 8674

Michelsen, Claus, cmich@imada.ou.dk, Department of Mathematics and Computer Science; Odense University; Campusvej 55; DK-5230 Odense M; DENMARK; Tel. (+45) 6557 2307; Fax (+45) 6593 2691

Miyazaki, Mikio, mmiyaza@gipnc.shinshu-u.ac.jp, Faculty of Education; Shinshu University; Rokunokuchi; NIsninagano; Nagano-Shi; 380-8544; Japan; Tel: 026 232 8106 ext.343; Fax: 026 234 5540

Modise, Gadifele Tiny, tinymodi@yahoo.com, Francistown College of Education, Private Bag 24, Francistown, Botswana, (+267 71764454, fax: +267 2416922)

Mohan-Ram, Vivekanand, vmo63973@bigpond.net.au , POBox 42567, Casuarina 0810, Northern Territory, Tel: 08 89271423 (H)

Molina Jaime, Óscar Javier, ojmolina@pedagogica.edu.co, Universidad Pedagógica Nacional, Bogotá-Colombia, Tel: (57) 1 5941894 Ext. 256.

Molina, Marta; martamg@ugr.es; Universidad de Granada, Dpto. Didáctica de la Matemática, Facultad de CC. de la Educación, Campus de Cartuja s/n, 18071, Granada, Spain; Phone: (+34)958243952; Fax: (+34)958246359

Monaghan, John, J.D.Monaghan@leeds.ac.uk, Centre for Studies in Science and Mathematics Education; University of Leeds; Leeds LS2 9JT; UK; Tel 0113 2334603.

Montes, Alejandro, amontes@campus.chi.itesm.mx, Tec de Monterrey at Chihuahua; Chihuahua 31160; Mexico ; Tel: (14) 240024 ext 143; Fax: (14) 240024 ext 108

Mora-Mendieta, Lyda Constanza lmendieta@pedagogica.edu.co. Universidad Pedagógica Nacional, Bogotá, D.C. Colombia, Tel. (57) 1 5941894 ext. 254

Morar, Tulsidas, centtm@upe.ac.za, Department of Science; Mathematics and Technology Education; University of Port Elizabeth; PO Box 1600; Port Elizabeth,; 6000 South Africa; Tel: +27 41 504 4024; Fax: +27 41 582 1000.

Moreira, Candida, cqmoreir@fc1.fc.up.pt, Dep. Pure Mathematics; Faculty of Science; Oporto University; 4050 Porto; Portugal; Tel: 351 2 310290; Fax: 351 2. 008628

Moreno, M. Mar, mmoreno@matematica.udl.cat, Departamento de Matemáticas, Universidad de Lérida. Avenida del Estudi General, 4, 25001 Lérida (Spain). Phone: +34 973 706501, fax: +34 973 706502.

Morey, Bernadete, bernadetemorey@gmail.com, Rua Coronel João Medeiros 1850 Natal RN Brazil 59077000, (55)(84)3234-5855

Morgan, Brian, B.Morgan@canterbury.ac.uk, Canterbury Christ Church College; North Holmes Road; Canterbury, Kent CT1 1QU; UK; Tel +44 (0)1227 767700; Fax +44 (0)1227 470442

Morgan, Candia, c.morgan@ioe.ac.uk, Department of Geography, Enterprise, Mathematics and Science, Institute of Education, 20 Bedford Way, London WC1H 0AL, United Kingdom, +44 (0)20 7612 6677, http://www.ioe.ac.uk/staff/GEMS/GEMS_61.html

Morris, Stephen, sm@conceptstew.co.uk, Concept Stew Ltd, 139 Brick Lane, London, E1 6SB, UK (+44) (0)20 7163 3178, Mob: (+44) (0)7771 562 180, http://www.conceptstew.co.uk

Morska, Janina, janimor@wp.pl, Gizycko, Poland, https://matematyczneimpresje.blogspot.com/p/o-mnie_29.html

Moschkovic, Judith, jmoschko@ucsc.edu, University of California, Santa Cruz; Education Department, 235 Social Sciences I; 1156 High Street; Santa Cruz, CA 95064; Tel: 831-459-2004; Fax: 831-459-4618; http://people.ucsc.edu/~jmoschko/; http://cemela.math.arizona.edu

Mosimege, Mogege, mogege.mosimege@nwu.ac.za, Rectorate, Mafikeng Campus, North West University, Mafikeng, South Africa, (+27) 18 389 2175

Mosquera, Julio, julio_mosquera@hotmail.com, Mathematics Education Department, Universidad Nacional Abierta (National Open University), Caracas, Venezuela, +58 416 425 5596

Moskowitz, Stuart, stuart@humboldt.edu, Humboldt State University Mathematics Dept. Arcata California 95521 USA, 1-707-445-579

Mosquera, Julio, jmosque@una.edu.ve, Área de Educación, Universidad Nacional Abierta, Av. Los Calvani, No. 18, San Bernardino, Caracas 1010, Venezuela, (058) 212 555 2218, http://seminariopedagocrita.blogspot.com/

Mosvold, Reidar, reidar.mosvold@uis.no, Department of Early Childhood Education, University of Stavanger, 4036 Stavanger, NO, (+47) 51 83 23 42, http://mathedresearch.wordpress.com

Mousley, Judith, judym@deakin.edu.au, School of Education; Deakin University; Geelong 3217; Australia; Tel: +61352554851, +61407157815

Movshovitz-Hadar, Nitsa, nitsa@technion.ac.il, Faculty of education in science and technology, Technion – Israel Institute of Technology, Haifa 32000, ISRAEL, 972-54-4929438; Fax: 972-9-7688005, https://edu.faculty-ms.technion.ac.il/members/nitsa-movshovitz-hadar/?lang=en

Moyer-Packenham, Patricia, patricia.moyer-packenham@usu.edu , Emma Eccles Jones College of Education and Human Services, Utah State University, 2805 Old Main Hill, Logan, UT 84321, USA 435-797-0394

Moyo, Sibusiso,moyos@dut.ac.za, Institute for Systems Science, Research, Innovation & Engagement Portfolio, Durban University of Technology, PO Box 1334, Steve Biko Campus, Durban 4000, South Africa, +27313732576, +27837899465, http://www.dut.ac.za

Mpalami, Nkosinathi, nathimpalami@gmail.com, P.O. Box 15087, Maseru 100, LESOTHO, +266 58842058

Mubukwanu Sibeso, sibeso@aims.ac.tz, +260977706320, Rusangu University, Box 391, Monze, Zambia.

Mudaly, Vimolan, mudalyv@ukzn.ac.za, UKZN, Edgewood Campus Faculty of Education, School of Science, Mathematics and Technology Education, University of KwaZulu-Natal, Private Bag X03, Ashwood, 3605, Telephone: +27-31-2603682, Fax : +27-31-2603697, Cell: +27829770577

Muhs, Tammy, Tammy.Muhs@ucf.edu, University of Central Florida Mathematics Department, 4393 Andromeda Loop N, MSB 427, Orlando, FL 32816, USA, 01-407-823-4424

Muir, Carrie, Carrie.Muir@Colorado.EDU, Department of Mathematics, University of Colorado, 395 UCB, Boulder, CO 80309-0395, USA, 303-492-7180.

Mukhopadhyay, Swapna, swapna_mukhopadhyay@mist.seattleantioch.edu, Core Faculty, Graduate Programs in Education; Antioch University Seattle; 2326 Sixth Ave; Seattle, WA 98121-1814; Tel: 206/441-5352 ext. 5622; Fax: 206/441-3307

Mulligan, Joanne, JMULL@ted.educ.mq.edu.au, School of Education; Macquarie University; North Ryde NSW 2109; Australia; Tel: 61 02 8508621; Fax 61 02 8508674

Murphy, Carol, C.M.Murphy@ex.ac.uk, Graduate School of Education, University of Exeter, Heavitree Road, Exeter, EX1 2LU, UK, Tel: +44(0)1392 264974 https://education.exeter.ac.uk/staff_details.php?user=cmmurphy

Mwakapenda, Willy, mwakapenda@yahoo.com; mwakapendawwj@tut.ac.za, Mathematics Science & Technology Education Dept, Tshwane University of Technology, Soshanguve South Campus, Box 911-1857, Rosslyn, Pretoria 0200, SOUTH AFRICA, +27824439243, www.tut.ac.za

Nagy, Ildikó, nagyildikoanna@freemail.hu, nagy.ildiko@tfk.kefo.hu, Teacher Training College, Kecskemét College, H 6000 Kecskemét, Kaszap u. 6-14. Hungary, (+36) (30) 3 823 383, http://tfk.kefo.hu/kezdolap

Namukasa, Immaculate, inamukas@uwo.ca, Althouse Faculty of Education Building, The University of Western Ontario, 1137 Western Road, London, Ontario N6G 1G7 , (+1) 519 661 2111, ext 82271, Fax:(+1) 519-661-3833, http://publish.edu.uwo.ca/immaculate.namukasa/

Nardi, Elena, e.nardi@uea.ac.uk, School of Education, University of East Anglia, Norwich NR4 7TJ, UK, (+44) (0) 1603 592631, http://www.uea.ac.uk/~m011

Nason, Rod, r.nason@qut.edu.au, School of Mathematics, Science and Technology Education; Queensland University of Technology; Locked Bag No.2; RED HILL 4059; Queensland; Australia; Tel: +617 7 3864 3920; Fax +617 7 3864 3985

NDENZAKO, Eugène, eugene@aims.ac.tz, Mathematician Msc graduate researcher, University of Burundi, P.O. Box 2700, Bujumbura, Burundi, +25769691868, www.ub.edu.bi

Ndung'u, Steven, steven.ndungu@aims-senegal.org, African Institute of Mathematical Sciences (AIMS- Senegal), 1418 Mbour, Senegal, Tel: +221 773846723/ Tel: +254 708439755(Kenya)

Neagoy, Monica M., monicaneagoy@earthlink.net , MN Mathematics Consulting Services, 1276 N Wayne Street, Suite 1030, Arlington VA, 22201, USA, (703)527-5255, www.MonicaNeagoy.com

Nevile, Liddy, liddy@sunrise.srl.rmit.edu.au, Sunrise at RMIT; GPO Box 2476V; Melbourne 3001; Australia; Tel: 613 - 9660 3024; Fax: 613 - 9660 2761; http://www.srl.rmit.edu.au/sunrise.html

Newson, Graham, gn2@york.ac.uk, Department of Educational Studies; University of York; York; YO1 5DD; UK; Tel: (+44) (0)1904 433463; Fax: (+44) (0)1904 433459

Newstead, Karen, newstead@malati.wcape.school.za, Mathematics Learning and Teaching Initiative; P.O. Box 647; Bellville; 7535 South Africa; Tel: +27 21 948 6643; Fax: +27 21 948 6686 (moved to Australia, out of education - information from Alwyn Olivier)

Ng, Swee Fong, sfng@nie.edu.sg, National Institute of Education; School of Science/Maths Division; 469 Bukit Timah Road; Singapore 259756;
Tel: (65)-4605900

Ngoepe, Mapula G., ngoepmg@unisa.ac.za, Department of Mathematics Education, UNISA, P. O. Box 392, Pretoria, 0003, South Africa +27124298375

Nicosia, Giovanni Giuseppe, gnicosia@inwind.it, Istituti Superiori Aldini Valeriani-Sirani, Via Bassanelli 8, 40129 Bologna, Italy, (+39) 333 2019447

Niess, Margaret, niessm@o regonstate.edu,STEM Education, Oregon State University, Corvallis, OR 97331-6507, USA; Tel: 541-752-5454

Ní Ríordáin, Máire, maire.niriordain@ucc.ie, School of Education, University College Cork, Cork, Ireland, +35321-4903841, http://research.ucc.ie/profiles/A013/maireniriordain

Nisbet, Steven, s.nisbet@griffith.edu.au, Faculty of Education (School of EPS), Griffith University, Mt Gravatt Campus, Q 4122, Australia, phone 61-7-3735-5837, fax 61-7-3735-5686, http://www.griffith.edu.au/education/school-education-professional-studies-brisbane-logan/staff/steven-nisbet

Niss, Mogens, mn@ruc.dk, IMFUFA, NSM, Roskilde University, P.O. Box 260, DK 4000 Roskilde, Denmark, +45 46742266, fax: +45 46743020

Nieuwoudt, Hercules; email: hercules.nieuwoudt@nwu.ac.za; Faculty of Education Sciences, North-West University, Potchefstroom Campus, Private Bag X6001, Potchefstroom, 2520; tel: +27 18 299 1875; fax: +27 18 299 4238

Njisane, Raphael, njisane@getafix.utr.ac.za, Faculty of Education; University of Tanskei; Private Bag X1; Umtata; 5100 South Africa; Tel: +27 471 302 2554

Nkhwalume, Alakanani Admass Alex, nkhwalumeaa@mopipi.ub.bw, University of Botswana; Department of Mathematics and Science Education; Private Bag 00702; Gaborone; Botswana; +267 355 2159, +267 72878614; http://www.ub.bw/

Noonan, Shay, WNET5093@waikato.ac.nz, Morrinsville Primary School; Morrinsville; NZ; Tel (64) 7-889 7250; Fax (64) 7-889 0017

Norén, Eva, eva.noren@mnd.su.se Stockholm university; Department of mathematics and science education; 106 90 Stockholm, Sweden; Tel: +46 70 566 5705; +46 8 1207 6629; http s://mnd.su.se

Nortvedt, Guri A, g.a.nortvedt@ils.uio.no, Department of Teacher Education and School Research, Faculty of Educational Research, University of Oslo, Nils Henrik Abel's Building room 521, Blindern, P.O. Box 1099 Blindern, 0317 Oslo, Norway, (+47) 913 20 460, http://www.uv.uio.no/ils/personer/vit/gurin/

Noss, Richard, rnos@ioe.ac.uk,Department of Mathematical Sciences; Institute of Education; University of London; 20 Bedford Way; London WC1H 0AL; UK; Tel: +44 (0)171 612 6655; Fax: +44 (0)171 612 6686; http://www.ioe.ac.uk/rnoss/

Nouri, Fatma Zohra, fz_nouri@yahoo.fr , Laboratoire de Mathematiques Appliquees, Universite Badji Mokhtar, Annaba (Algeria), Tel: 0021338875395, Fax: 0021338875396 , Mobile: 00213662250771

Novotná, Jarmila, jarmila.novotna@pedf.cuni.cz, Department of Mathematics and Mathematical Eduction, Faculty of Education, Charles University in Prague, M.D. Rettigove 4, 116 39 Praha 1, Czech Republic, (+420) 221900251, Fax: (+420) 221900248 http://kmdm.pedf.cuni.cz

Noyes, Andrew, andrew.noyes@nottingham.ac.uk, Centre for the Study of Mathematics Education; School of Education; University of Nottingham; Jubilee Campus; Nottingham NG8 1BB; UK; (+44) (0) 115 951 4470; Fax: (+44) (0) 115 846 6600; http://www.nottingham.ac.uk/education/staff/anoyes/htm

Nunez, Marcel, murrea@mat.upv.es, Deparmento de Matematica Aplicada; Escuela Tecnica Superior de Ingenieros Industriales; Universidad Politecnica de Valencia; Camino de Vera,14. Apartado 22.012; 46071 Valencia; Espana; Tel: +(34) 6 387 7664; Fax: +(34) 6 387 7669

Nygaard, Olav, Olav.Nygaard@uia.no, University of Agder, Serviceboks 422, N-4604 Kristiansand, Norway, (+47) 38 14 15 42, Fax: (+47) 38 14 10 71 http://home.uia.no/olavn/

Nyman, Melvin, nyman@alma.edu, Department of Mathematics and Computer Science, Alma College, 614 W. Superior St., Alma, Michigan, 48801, USA, 989-463-7264.

Oates, Greg, g_oates@math.auckland.ac.nz, Mathematics Education Unit; Department of Mathematics; The University of Auckland; PB 92019; Auckland; New Zealand; Tel: 64 9 373 7599 ext 8605; Fax: 64 9 373 7457

Oates, Greg, greg.oates@utas.edu.au, School of Education, College of Arts, Law & Education (CALE); The University of Tasmania; Locked Bag 1307, Launceston 7250, Tasmania, Australia; Tel: 61 3 6324 3339

Obando, Gilberto, giloband@makarenko.univalle.edu.co, Universidad del Valle; Ciudad Universitaria Melendez; Instituto de Educacion y Pedagogia; Grupo Educacion Matematica; Edificio 388 Oficina 3017; Santiago de Cali; Colombia; Tel: (+57) 2 330 91 33; Fax: (+57) 2 339 23 11; http://makarenko.univalle.edu.co/~GEM-UV/

Odogwu, Helen N, helenaodogwu@yahoo.com Department of Science and Technology Education, Faculty of Education, University of Lagos Nigeria

Okedoye, Akindele Michael, dele.okedoye@covenantuniversity.edu.ng, Department of Mathematics, College of Science and Technology, Covenant University, Km. 10, Idiroko Road, Canaan Land, Ota, Ogun State, Nigeria, (+234)(0)8035688453, http://www.covenantuniversity.edu.ng/Profiles/Okedoye-Akindele-Michael

OLAGUNJU, Samuel Olu, lagsam2012@gmail.com, lagsam2010@yahoo.com, Department of Mathematics, Adeyemi College of Education, P.M.B. 520, Ondo, Nigeria; +2348034654976, +2348052397673

Olive, John, jolive@uga.edu, Department of Mathematics and Science Education; The University of Georgia; 105 Aderhold Hall; Athens; Georgia 30602-7124; USA; Tel: (+1) 706 542 4557; Fax: (+1) 706 5424551; http://math.coe.uga.edu/olive/welcome.html

Oliveira, Izabella, izabella.oliveira@fse.ulaval.ca Faculté des sciences de l'éducation, 2320 rue des Bibliothèques, Université Laval - Québec (Québec), G1K 7P4, Tél.: (418) 656-2131 poste 4422

Olivier, Alwyn,aio@sun.ac.za, Faculty of Education; University of Stellenbosch; 7600 South Africa; Tel: +27 21 808 2299; Fax: +27 21 808 2295

Olszewski, Peter, pto2@psu.edu, Department of Mathematics, The Pennsylvania State University, The Behrend College, 4205 College Drive, Erie, PA 16563, USA, Tel. (814) 898-6007, www.personal.psu.edu/pto2

Olwande,Justus Omondi,jojomondi102@gmail.com,19-10205 Maragua-Kenya,+254710795454.

Omolo, Leakey Odoyo, omololeakey014@gmail.com, KIsumu Boys' School, 1973-40100, Kisumu-Busia Road, Kenya, +254701411094/+254789250525

Oonk, Wil, _w.oonk@fi.uu.nl_Freudenthal Institute for Science and Mathematics Education, University Utrecht, P.O. Box 9432, 3506 GK Utrecht, The Netherlands, (+31)(0) 30 2635531, FAX: (+ 31)(0) 30 2660430

Oppong, Nicholas, noppong@coe.uga.edu, Department of Mathematics Education; University of Georgia; 105 Aderhold Hall; Athens GA 30602; USA; Tel: 706 542 4555; Fax: 706 542 4551, http://oppong.coe.uga.edu/

O'Reilly, Declan, D.OReilly@sheffield.ac.uk, Division of Education; University of Sheffield; 388 Glossop Road; Sheffield S10 2AJ; U.K.; Phone: 44 (0)114 282 4991; Fax: 44 (0)114 279 6236

Ormond, Christine, c.ormond@ecu.edu.au, School of Education, Edith Cowan University, 270 Joondalup Drive, Joondalup, 6027, Western Australia, Australia (08)6304 5712

Ortiz, José, ortizjo@cantv.net, Departamento de Matematicas; Facultad de Ciencias Económicas y Sociales, Universidad de Carabobo, Campus La Morita; Av. Ruiz Pineda s/n; La Morita II; Maracay; Venezuela; Tel: 58 0243 8087862; Fax 58 0243 2326195 http://www.getcited.org/mbrx/PT/99/MBR/11073309

Ossimitz, Guenther, ossimitz@bigfoot.com, Institut fuer Mathematik, Statistik und Didaktik der Mathematik; Abteilung fuer Didaktik der Mathematik; Universitaet Klagenfurt; A-9020 Klagenfurt Univ.str. 65; Austria; Tel: +43 463 2700-437; Fax:+43 463 2700 427; http://www.uni-klu.ac.at/users/gossimit/main.htm

Østigård,Bente, bente.ostigard@hist.no, Sør-Trøndelag University College, Faculty of Teacher and Interpreter Education, N-7004 Trondheim, Norway, (+47) 73 55 97 86, Fax: (+47) 73 55 98 51

Othman, Hiba, hothman@aust.edu.lb, Department of Mathematics, American University of Science and Technology, P.O. Box: 16-6452, Achrafieh Beirut: Lebanon, (+961) (0) 1 218716 Ext. 442, Fax: (+961) (0) 1 218717.

Othman, abdulrazak, hjaromptb@yahoo.com, Institut Pendidikan Guru Kampus Bukit Mertajam14000 Bukit Mertajam,Malaysia, 604-5215227

Otto, Albert; alotto@mac.com; 517 Autumn Bluff Drive, Ellisville, MO, 63021, USA; (+1) 636-527-1860

Owen, Alun, A.J.Owen@lboro.ac.uk_, Mathematics Education Centre, School of Mathematics, Loughborough University, Loughborough LE11 3TU, UK, (+44) (0) 1509 22 2856, Fax: (+44) (0) 1509 22 8211, http://mec.lboro.ac.uk/pages/people/ajo.html

Owens, Kay ; kowens@csu.edu.au; Charles Sturt University; Locked Bag 49, Dubbo NSW2830 Australia; 61 2 68857352; 61 2 68840407

Paditz, Ludwig, paditz@informatik.htw-dresden.de, Fakultät Informatik/Mathematik, Hochschule für Technik und Wirtschaft, D-01069 Dresden, Germany, Friedrich-List-Platz 1, Tel.: +49-351-462-3541, Sekretariat: -2530, Fax: -2197

Palhares, Pedro, palhares@ie.uminho.pt, Instituto de Educação - Campus de Gualtar 4710-057; Portugal; Tel.: +351 253 601236

Pálsdóttir, Guðbjörg gudbj@hi.is, University of Iceland, School of Education, v/Stakkahlíð, 101 Reykjavík, Iceland (+354) 5255361

Pant, Binod Prasad, binod@kusoed.edu.np, Assistant Professor (Mathematics Education), Kathmandu University School of Education, Hattiban, Lalitpur, Nepal, +977-9851176652

Paola, Domingo, domingo.paola@tin.it, Liceo scientifico “G.Bruno”; via Pontelungo 84; I 17031 Albenga; SV; Italia; Tel: +(39) (0)182 555601; Fax: +(39) (0)182 544 403

Paranjape, Kapil Hari, kapil@iisermohali.ac.in, Indian Institute of Science Education and Research Mohali, Transit Campus, MGSIPAP Complex, Chandigarh 160019, India, (+91) 172 279 1024, Fax: (+91) 172 279 1024, http://www.iisermohali.res.in/html/faculty/kapil.html

Parmjit Singh , parmj378@salam.uitm.edu.my, Faculty of Education, Campus Sec. 17, University Technology MARA, Selangor, Malaysia School (+60) (3) 55227396 Fax: (+60) (3) 55227412

Parris, Alan, MNZM, pa@linwoodcollege.school.nz, 9 Cuffs Road, Wainoni, Christchurch8061, NZ, 0064-3-891-2357, www.nzamt.org.nz, www.mathsweek.org.nz

Parzysz, Bernard, parzysz@poncelet.univ-metz.fr, Dept de mathematiques; Universite de Metz; Ile du Saulcy; 57045 Metz Cedex 1; France

Passmore, Rachel, r.passmore@auckland.ac.nz, Department of Mathematics; The University of Auckland; P O Box 92 019 Auckland; New Zealand; Tel: +64 9 923 8779

Pateman, Neil, pateman@hawaii.edu, Department of Curriculum Studies; Everly Hall 222D; University of Hawaii; 1776 University Ave.,; Honolulu, HI 96822; USA; (808) 956 4413; Fax: (808) 956 9905; http://www.coe.hawaii.edu/cs

Peard, Robert, r.peard@qut.edu.au School of Mathematics, Science and Technology Education; Queensland University of Technology; Locked Bag No.2; RED HILL 4059; Queensland; Australia; Tel: +617 7 3864 3084; Fax +617 7 3864 3985

Pearn, Catherine, cpearn@luga.latrobe.edu.au, Graduate School of Education; La Trobe University; Bundoora; Victoria; AUSTRALIA; 3083; Tel: +61 3 9479 2298; Fax: +61 3 9479 3070

Pearson, Esther, epearson@lasell.edu <mailto:epearson@lasell.edu>, Lasell College 1844 Commonwealth Ave Newton Massachusetts 02466-2716, 617-243-2455, www.lasell.edu <http://www.lasell.edu>

Peatfield, Nicholas, n.peatfield@bathspa.ac.uk, Bath Spa University; Rush Hill Campus; Rush Hill; Bath; BA2 2QL; UK, Tel: 44 (0) 7963 545 507, https://www.bathspa.ac.uk/our-people/nicholas-peatfield/

Pěchoučková, Šárka, pechouck@kmt.zcu.cz, Katedra matematiky, Fakulta pedagogická, Západočeská univerzita v Plzni, Sedláčkova 38, 306 14 Plzeň, Czech Republic, (+420) 377 636 274

Pedersen, Jean, jpedersen@scu.edu , Department of Mathematics and Computer Science, Santa Clara University, 500 El Camino Real, Santa Clara, CA 95053-0290 USA; Tel: (408)-554-4538; Fax: (408)-554-2370

Pehlivan, Serpil, serpil@sdu.edu.tr, Department of Mathematics, Suleyman DEmirel University, Cunur East Campus, 32260, Isparta, Turkey, (+90)(0) 246 2114018, Fax:(+90)(0) 246 2114302, ftp://ftp.sdu.edu.tr/pub/mat/serpil/

Penchaliah, Sylvie, sylvie@pixie.udw.ac.za, Department of Psychology of Durban-Westville; Private Bag X54001; Durban; 4000 South Africa; Tel: +27 31 820 2598; Fax: +27 31 820 2866

Penlington, Tom, t.penlington@ru.ac.za, RUMEP PO Box 94 Grahamstown South Africa 6140, +27 (046) 603 8166/603 7294.

Penteado, Miriam Godoy, mirgps@g mail.com, Graduate Program in Mathematics Education, Department of Mathematics Education, Universidade Estadual Paulista - Unesp. Av 24A, 1515, 13506-900 Rio Claro-SP, Brazil, phone +55-19-35269391.

Pepin, Birgit, Birgit.pepin@hist.no , Høgskolen i Sør-Trøndelag, Avd. for lærer- og tolkeutdanning, 7004 Trondheim, Norway, Tel. (+ 47) 735 59016 (office, (+47) 95 47 18 95 (mobile), Fax 73 55 98 51

Perdue, Diana S., dsp4e@virginia.edu, University of Virginia, BIS Program, Charlottesville, VA 22904, 804.504.1990, Rimwe Educational Resources LLC, USA http://www.rimwe.com

Perdue, Diana S., dperdue@vsu.edu, Virginia State University, Department of Mathematics & Computer Science, BOX 9068, 303Es Hunter-McDaniel Bldg., Petersburg, VA 23806, 804.524.5437, http://tinyurl.com/DrPerdue

Perks, Pat, P.A.Perks@bham.ac.uk, School of Education; The University of Birmingham; Birmingham B15 2TT; UK; phone: (+44) 121 414 4814

Pesci, Angela, angela.pesci@unipv.it, Department of Mathematics, University of Pavia, Via Ferrata 1, 27100 Pavia, Italy, (+39) 0382 985660, Fax (+39) 0382 985602

Petakos, Kyriakos, kyriakospetakos66@gmail.com , Advanced School of Tourism Education Rhodes (ASTER), Dimokratias 2, 85100 Rhodes, Greece, (+30) 6972927034.

Peter, Andrea, apeter@math.uni-muenster.de, Institut fuer Didaktik der Mathematik; Westfaelische Wilhelms-Universitaet; Einsteinstr. 62; 48149 Muenster; GERMANY; Tel: 49-251-833716; Fax 49-251-832090

Peters, Michael, m.peters@aston.ac.uk, School of Engineering and Applied Science, Aston University, Birmingham, B4 7ET, UK, (+44) (0) 0121 204 3202

Peterson, Ulf, , The Institute for an Individually Adapted School; Mathematics Education; Hagforsgatan 65; S-416 75 GOTHENBURG; Sweden; Tel: +46 31 25 47 60; Fax: +46 31 707 31 33

Phillips, Richard, Phillips@badsey.net, 4 High Street, Badsey, Evesham, WR11 7EW; UK; Tel: +44 (0)1386 831112; Fax: +44 (0)1386 831112; www.richardphillips.org.uk

Piatek-Jimenez, Katrina, k.p.j@cmich.edu, Central Michigan University, Department of Mathematics, 214 Pearce Hall, Mount Pleasant, MI, 48859, USA, (989)774-3897, http://www.cst.cmich.edu/users/piate1kl/

Picard, Tony, apicard@hawaii.edu, Department of Teacher Education

Pierce, Robyn, r.pierce@unimelb.edu.au. Science and Mathematics Education, Melbourne Graduate School of Education, The University of Melbourne, VIC 3010, Australia, (+61) (0) 3 83448519

Pietropoli, Enrico, enrico.pietropoli@istruzione.it, Liceo “Eugenio Montale”, via Bravetta 545, 00164 Rome, Italy, +39 3357621721

Piggott, Jennifer Susan, jsp38@cam.ac.uk, University of Cambridge, Centre for Mathematical Sciences, Wilberforce Rd, Cambridge, CB3 0RN, 01223 764664, http://nrich.maths.org.

Pimm, David, d.j.pimm@open.ac.uk, Centre for Mathematics Education; The Open University; Walton Hall; Milton Keynes; Buckinghamshire MK7 6AA; UK; Tel: (44) (0)1980 652715; Fax: (44) (0)1908 652140

Pinel, Adrian, a.pinel@ucc.ac.uk, University College Chichester; Bognor Regis Campus; PO21 1HR; UK; Tel: +44 (0)243 812069/822788

Pinel, Jeni, j.pinel@ucc.ac.uk, University College Chichester; Bognor Regis Campus; PO21 1HR; UK; Tel: +44 (0)243 822788

del-Pino, Claudio, cdelpino@pehuenche.utalca.cl, Universidad de Talca; Instituto de Matematicas y Fisica; Casilla 721; Talca; Chile; Tel: 56 71 200 344/313; Fax: 56 71 200 392

Pirie, Susan, susan.pirie@ubc.ca, Department of Curriculum Studies; University of British Columbia; 2125 Main Mall; Vancouver V6T 1Z4; Canada; Tel: 604 822 5206/ 5422; Fax 604 822 4714

Planas, Núria, Nuria.Planas@uab.cat, Facultat de Ciències de l'Educació, D-134, E-G5, Universitat Autònoma de Barcelona, Cerdanyola del Vallès, Barcelona, 08193, Spain. Phone no: (34) 93 581 26 44, Fax no: (34) 581 11 69.

Podkhodova, Natalia, podhodova@gmail.com, Psychology of mathematics education, Maly prospect, 30-32, 51, Saint-Petersburg, Russia, +79218962641

Poirier, Louise Département de Didactique, bureau D-515, Faculté des Sciences de l’Éducation, Université de Montréal, C.P. 6128 succursale Centre-ville, Montréal QC, Canada, H3C 3J7, (1) 514-343-7247, Fax : (1) 514-343-7286

Ponte, Joao Pedro, jponte@fc.ul.pt , Departamento de Educacao da Faculdade de Ciencias; Universidade de Lisboa; Edificio C1-Campo Grande; 1700 LISBOA-PORTUGAL; Tel: 351 1 750 0049; Fax: 351 1 750 0082; http://correio.cc.fc.ul.pt/~jponte

Pope, Sue, sue.pope@qcda.gov.uk, QCDA, Tel 07912 999 108 www.qcda.gov.uk (note no address at present as we're in the middle of relocation).

Portela, Jose, j-portela@tamu.edu, 345 Harrington-EDCI; College of Education; Texas A&M University; Station; Texas; USA; Tel: 409 845 8367; Fax: 409 845- 9663 http://acs.tamu.edu/~jhp9854/index.html

Porteous, Keith, Centre for Educational Studies, University of Hull, Hull. Tel 01482 465953, email k.porteous@hull.ac.uk

Porter,Anne alp@uow.edu.au, School of Mathematics and Applied Statistics, University of Wollongong, NSW 2522, Australia, Phone (+61) (2) 42214058

Porter, Shirley, shirley@shirleyporter.co.nz, 140 Welcome Bay Road, Tauranga, 3112, New Zealand

Portugais, Jean, jean.portugais@umontreal.ca, Didactique des mathematiques; Departement de didactique FSE; Universite de Montreal; C.P. 6128 succ. Centre-Ville; Montreal QC Canada H3C 3J7; tel (514) 343-7102; Fax (514) 343 7286

Povey, Hilary, h.povey@shu.ac.uk <mailto:h.povey@shu.ac.uk>, Mathematics Education Centre; Sheffield Hallam University; City Campus; Sheffield S1 1WB; UK; (+44) (0)114 255 6017; http://www.shu.ac.uk/research/ern/sp_hilary_povey.html

Powell, Angiline, a.powell2@tcu.edu, School of Education Institute of Mathematics, Science and Technology Education; Texas Chritian University; Fort Worth, Texas, 76129; USA Tel:817.257.6775; Fax: 817.257.5525

Powell, Arthur, PowellAB@andromeda.rutgers.edu, Department of Urban Education ,Rutgers University, Bradley Hall, Room 156, 110 Warren Street, Newark, NJ 07102-1809, 973.353.3528 (department office), 973.353.3530 (my office), 973.353.1622 (fax) Department: http://edu.newark.rutgers.edu/ Personal: http://www.andromeda.rutgers.edu/~powellab/

Pozzi, Stefano, s.pozzi@ioe.ac.uk, Mathematical Sciences; Institute of Education; University of London; 20 Bedford Way; London WC1H 0AL; UK; Tel: +44 (0) 171 612 667; Fax: +44 (0) 171 612 6686

Pratt, Dave, d.pratt@ioe.ac.uk, Institute of Education; University of London; WC1H0AL; UK; Tel:: +44 (0)207 612 6655

Prendergast, Mark, mark.prendergast@tcd.ie, School of Education, Arts Building, Trinity College Dublin, Dublin 2, Ireland, 0035318964855, http://people.tcd.ie/Profile?Username=MPRENDE

Prescott, Anne, anne.prescott@uts.edu.au, University of Technology Sydney, Kuring-gai Campus, PO Box 222, Lindfield, 2070, Australia; (+61)(2)9514 5406; Fax (+61)(2) 9514 5556, http://datasearch2.uts.edu.au/fass/staff/listing/details.cfm?StaffId=2626

Presmeg, Norma, npresmeg@garnet.acns.fsu.edu , Departmenbt of of Curriculum and Instruction; The Florida State University; Tallahassee FL 32306-4490; USA; Tel: 850 644 8427; Fax: (850) 644-1880

Prestage, Steph, S.A.Prestage@bham.ac.uk, School of Education; The University of Birmingham; Birmingham B15 2TT; UK; Tel: (+44) 121 414 4864

Price, Peter S, pprice@chc.edu.au, School of Education and Humanities, Christian Heritage College, PO Box 2246, Mansfield DC Qld 4122, Australia, Ph +617-3347-7935, Fax +617-3347-7911, www.chc.edu.au

Prins, Elise, edp@land.sun.ac.za, Institute for Mathematics and Science Education (IMSTUS); University of Stellenbosch; 24 Crozier Street; 7600 Stellenbosch; SOUTH AFRICA; Tel: +21 8083689; Fax: +21 8083000

Puig, Luis, luis.puig@uv.es, Departament de Didactica de la Matematica; Universitat de Valencia; Aptdo. 22045; 46071 Valencia; Spain; tlf 34-6-3864486; fax 34-6-3864487

Pugalee, David, david.pugalee@uncc.edu, Center for STEM Education, 9201 University City Blvd.; COED Suite 222, The University of North Carolina at Charlotte; Charlotte, NC 28223; USA; Tel: 704-687-8887

Rachlin, Sid, rachlins@mail.ecu.edu, Department of Mathematics; East Carolina University; Greenville; NC 27858; USA; Tel: 919 328 4111; Fax: 919 328 4103

Radford, Luis, Lradford@nickel.laurentian.ca, School of Education; Laurentian University; Sudbury; Ontario; Canada P3E 2C6; Tel: 705 675 1151 ext 022; Fax: 705 675 4816

Radmehr, Farzad, f.radmehr@um.ac.ir, Department of Applied Mathematics, Faculty of Mathematical Science, Ferdowsi University of Mashhad, Azadi Square, Mashhad, Iran, +985138805698, http://f.radmehr.profcms.um.ac.ir/

Rafiepour, Abolfazl, Rafiepour@uk.ac.ir & drafiepour@gmail.com, Department of Mathematics Education, Faculty of Mathematics and Computer, Shahid Bahonar University of Kerman, Kerman, Iran- +98 (34) 31322451 http://academicstaff.uk.ac.ir/en/rafiepour

Rahaman, Jeenath, jeeni.12345@gmail.com, HBCSE, TIFR, V.N. Purav Marg, Mankhurd, Mumbai-400088, India, (+91) 9757413655, (+91) 8879038724

Rainer Heinrich, rainer.heinrich@smk.sachsen.de, Saechsisches Staatsministerium fuer Kultus, Referat 45, Carolaplatz 1, 01097 Dresden, Germany, Tel: +49 351 564 2950, Fax: +49 351 564 2909

Ramaharo, Franck, franck.ramaharo@gmail.com, Département de Mathématiques et Informatique, Faculté des Sciences, Université d'Antananarivo, BP 906, 101 Antananarivo, Madagascar, Tel: +261 32 02 275 89.

Raman, Manya, manya@socrates.berkeley.edu, Graduate Group in Science and Mathematics Education; 4533 Tolman Hall #1670; Berkeley; California 94720-1670; USA; TEL: 1 510 642 0288; http://socrates.berkeley.edu/~manya/

Ramasamy, A,amsr02@sancharnet.in, Pondicherry University; Pondicherry – 605014; India

Ramatlapana, Kim, kim.ramatlapana@wits.ac.za, School of Education; University of the Witwatersrand; 27 St Andrews Road, Parktown, Johannesburg 2193, South Africa; Tel: +27 11 7173484

Rangnes, Toril Eskeland, tera@hib.no, Bergen University College, Pb. 7030, N-5020 Bergen, Norway, (+47) 55 58 57 11, Fax: (+47) 55 58 58 09

Rastogi, Satish, satishrastogi11@gmail.com , Institute of Distance Education University of Swaziland Kwaluseni Private Bag 04 P.O. Matsapha M201,Swaziland (Africa), Swaziland, +268 76778023, www.uniswa.sz

Rauff, James , jrauff@millikin.edu, Millikin University, Department of Mathematics, 1184 W. Main, Decatur, IL 62522, U.S.A., 1-217-424-6249, https://faculty.millikin.edu/~jrauff/index.html

Rawlins, Peter. p.rawlins@massey.ac.nz, School of Curriculum and Pedagogy, Massey University, Private Bag 11222 Palmerston North. +6463569099 extn 8855

Reaburn, Robyn, robyn.reaburn@utas.edu.au, Locked Bag 1307 Launceston Tasmania Australia 7248, +61 3 63243057, http://www.utas.edu.au/profiles/staff/education/Robyn-Reaburn

Reames, Matthew, mreames@gmail.com, Winchester City Schools, 48 S Purcell Ave, Winchester, VA 22601, USA, +1-540-667-7171, http://matthewreames.com

Recalde, Luis Cornelio, lurecal@hypatia.univalle.edu.co, Universidad del Valle; Ciudad Universitaria Melendez; Instituto de Educacion y Pedagogia; Grupo Educacion Matematica; Edificio 388 Oficina 3017; Santiago de Cali; Colombia; Tel: (+57) 2 330 91 33; Fax: (+57) 2 339 23 11; http://makarenko.univalle.edu.co/~GEM-UV/

Reid, David, dreid@uni-bremen.de, MZH 6300, FB3, University of Bremen, 28359 Bremen, Germany, +49 421 218-63725, http://www.math.uni-bremen.de/didaktik/ma/dreid/index_en.html

Reikerås, Elin, elin.reikeraas@uis.no, University of Stavanger, National Centre for Reading Education and Research, N-4036 Stavanger, Norway, (+47) 51 83 34 51

Reilly, Ivan, i.reilly@auckland.ac.nz, University of Auckland School of Mathematical & Information Sciences Department of Mathematics; Mathematics Education Unit; Private Bag 92019; Auckland; New Zealand; Tel: 64 9 3737599 x 8786

René de Cotret, Sophie, sophie.rene.de.cotret@umontreal.ca, Département de didactique, Université de Montréal, C.P. 6128 Succursale Centre-Ville, Montréal, Québec, Canada,H3C 3J7, Tél: (514) 343-5792, Fax: (514) 343-7286

Renjifo, Francisco, frenjifo@makarenko.univalle.edu.co, Universidad del Valle; Ciudad Universitaria Melendez; Instituto de Educacion y Pedagogia; Grupo Educacion Matematica; Edificio 388 Oficina 3017; Santiago de Cali; Colombia; Tel: (+57) 2 330 91 33; Fax: (+57) 2 339 23 11; http://makarenko.univalle.edu.co/~GEM-UV/

Rensaa, Ragnhild Johanne, ragnhild.rensaa@uit.no, UiT The Arctic University of Norway, Faculty of Engineering Science and Technology, (+47) 76 96 63 04

Reston, Enriqueta, edreston@usc.edu.ph, Science and Mathematics Education Department, University of San Carlos-Talamban Campus, 6000 Cebu City, Philippines, +63 2300100 local 146.

Restrepo, Myriam Vega, myvega@makarenko.univalle.edu.co, Universidad del Valle; Ciudad Universitaria Melendez; Instituto de Educacion y Pedagogia; Grupo Educacion Matematica; Edificio 388 Oficina 3017; Santiago de Cali; Colombia; Tel: (+57) 2 330 91 33; Fax: (+57) 2 339 23 11; http://makarenko.univalle.edu.co/~GEM-UV/

Retnowati, Endah, e.retno@uny.ac.id, Department of Mathematics Education, Faculty of Mathematics and Natural Sciences, Yogyakarta State University, Indonesia, Kampus Karang Malang, Sleman, Yogyakarta 55281, Telp. +62(274)586168, http://uny.ac.id/akademik/fakultas-matematika-ipa

Reys, Barbara, reysb@missouri.edu, 104 Stewart Hall; University of Missouri; Columbia, MO 65211-6180; USA; Tel: 573 882 8744; Fax: 573-882-4481

Reys, Robert, reysr@missouri.edu, 104 Stewart Hall; University of Missouri; Columbia, MO 65211-6180; Tel: 573 882 3740; Fax: 573 882 4481

Rhodes, Steve, rhodes@csel.uwc.ac.za; School of Science & Maths Education; University of the Western Cape; Private Bag X17; Bellville; 7535 South Africa; Tel: +2721 959 2322; Fax: +27 21 959 2602

Riascos, Yilton, yirifo@unciauca.edu.co, Departamento de Matemáticas Universidad del Cauca Oficina 213 Popayán Colombia, Tel/fax: +57-8209900-2373, móvil: 57-3155601170, http://www.unicauca.edu.co/matematicas/

Ribeiro, Carlos Miguel, cmribeiro@ualg.pt, University of Algarve, School of Education and Communication, Campus da Penha, Estrada da Penha, 8000 - 117 Faro, Portugal, (+351) 289 800 100

Rico, Luis, lrico@ugr.es, Departamento de Didáctica de la Matemática; Facultad de Ciencias de la Educación; Universidad de Granada; Campus de Cartuja s/n; 18071 Granada; Spain. Telf: 34- 958241503, Fax: 34-958-245963

Ridgeway, Jim, J.Ridgway@cent1.lancs.ac.uk, Department of Psychology; Lancaster University; Lancaster LA1 4YF; UK; Tel: +44 1524 593829; Fax: +44 1524 593744

Robinson, Carol, c.l.robinson@lboro.ac.uk , Mathematics Education Centre, Loughborough University, LE11 3TU, Tel 01509 22 8252 http://mec.lboro.ac.uk

Robson, Daphne, robsond@cpit.ac.nz , Mathematics and Statistics, Christchurch Polytechnic Institute of Technology (CPIT), Christchurch, New Zealand, (+64)(3)940 8282

Rodd, Melissa m.rodd@ioe.ac.uk, Institute of Education; University of London; WC1H0AL; UK; Tel:: +44 (0)207 9115557

Rodriguez, Hugo, hugo@desquebra2.com, Mathematics with no pain! Project, Bosques de Chiapas 81, Bosques de Mexico, Tlalnepantla Estado de Mexico 54050, MEXICO, (52)(55)397-7810, , http://www.desquebra2.com

Rogers, Pat, progers@edu.yorku.ca, Faculty of Education; York University; 4700 Keele Street; North York Ontario M3J 1P3; Canada; Tel: (416) 736 5002 ext 88802; Fax: (416) 736 5913

Rogerson, Alan, alan@cdnalma.poznan.pl , Mathematics Education for the Future Project, ul Listopadowa 1/45, 60-153 Poznań, Poland, mobile +48-604426763 http://math.unipa.it/~grim/21project.htm

Roh, Kyeong Hah, khroh@math.asu.edu, School of Mathematical and Statistical Sciences, Arizona State University, Tempe, Arizona 85287, USA; Tel: (+1) 480 965 3792, Fax: (+1) 480 965 8119; http://math.asu.edu/~khroh/

Röj-Lindberg, Ann-Sofi, aroj@abo.fi , Faculty of Education, Abo Akademi University, Finland, +35863571375 (home), +358505997724 (mobile), http://www.vasa.abo.fi/users/aroj

Rojas-Garzón, Pedro Javier, pedroedumat@udistrital.edu.co, Universidad Distrital Francisco José de Caldas, Bogotá-Colombia, Tel: (57) 1 3239300 Ext. 6365.

Rowland, Tim, tr202@cam.ac.uk , Faculty of Education, University of Cambridge, 184 Hills Road, Cambridge CB2 8PQ, England, Phone [44] [0]1223 367884, https://www.educ.cam.ac.uk/people/staff/rowland/

Romberg, Thomas, tromberg@facstaff.wisc.edu,. National Centre for Improving Student Achievement in Mathematics and Science, 1025 West Johnson Street, Madison, WI 53706; USA; Tel: 1 +608 263 3605; Fax: 1 +608 263 3406; http://www.wcer.wisc.edu/ncisla/

Ronda, Erlina, erlina.ronda@upd.edu.ph, linesronda@gmail.com, National Institute for Science and Mathematics Education Development, University of the Philippines; UPNISMED, Quirino Avenue, UP Diliman, Quezon City, 1101, Philippines. Tel +63 2 9274275 Fax: 63 2 9283545.

Rønning, Frode, frode.ronning@plu.ntnu.no , Norwegian University of Science and Technology, Programme for Teacher Education, N-7491 Trondheim, Norway, (+47) 73 59 05 53, Fax: (+47) 73 59 10 12 http://www2.svt.ntnu.no/ansatte/ansatt.aspx?id=963

Roper, Tom, T.Roper@education.leeds.ac.uk, Centre for Studies in Science and Mathematics Education; School of Education; University of Leeds; Leeds LS2 9JT; UK; Tel: +44 (0)113 233 4606 (work); Fax: +44 (0)113 233 4683

Rossouw Lynn, rossouw@cse1.uwc.ac.za, Goldfields Resource Centre; University of the Western Cape; Private Bag X17; Bellville; 7535 South Africa; Tel: +27 21 959 2510; Fax: +27 21 951 2602

Roubíček, Filip, roubicek@math.cas.cz, Department of Didactics of Mathematics, Institute of Mathematics, AS CR, Žitná 25, 115 67 Praha 1, Czech Republic, (+420) 222090736, Fax (+420) 222090701, http://www.math.cas.cz

Rouche, Nicolas, rouche@amm.ucl.ac.be, Centre de Recherches sur l'Enseignement des mathematique; 5 Rue Vandervelde; B 1400; Nivelles; Belgium; Tel: 67212527; Fax: 67212202

Rouhani, Behnaz, behnaz.rouhani@gpc.edu, Department of Mathematics & Computer Science, Georgia Perimeter College Online; Suite 1200, 555 N. Indian Creek Drive, Clarkston, Georgia, 30021; USA; Tel: 770-298-2300; Fax: 678-957-0901; http://facstaff.gpc.edu/~brouhani/

Roulet, Geoffrey, rouletg@educ.queensu.ca, Centre for Mathematics, Science, and Technology Education; Faculty of Education; Queen's University; Kingston, Ontario; K7L 3N6; Canada; Tel: 613-533-6000 ext. 74935; Fax: 613-533-6584.

Rowland, Tim, tr202@cam.ac.uk , Faculty of Education, University of Cambridge, 184 Hills Road, Cambridge CB2 8PQ, England, Phone [44] [0]1223 767560

Rowlett, Peter, p.rowlett@shu.ac.uk , Department of Engineering and Mathematics, Sheffield Hallam University, Sheffield, S1 1WB, UK. (+44) (0) 114 225 5838, http://peterrowlett.net/

Royster, David. david.royster@uky.edu, Department of Mathematics, Patterson Office Tower Rm 715, University of Kentucky, Lexington, KY, 40506, USA, 1+ (859) 257-1258, FAX: 1+(859) 257-4078 http://www.ms.uky.edu/~droyster

Rughubar-Reddy, Sheena, Sheena.Rughubar-Reddy@uct.ac.za, Numeracy Centre, University of Cape Town, Rondebosch; 7700 South Africa; Tel: +27 21 650-5730; Fax: +27 21 650-2334

Ruthven, Ken, kr18@cam.ac.uk, University of Cambridge; Faculty of Education; 184 Hills Road; Cambridge CB2 8PQ; UK; Tel:(+44) (0)1223 767600; http://www.educ.cam.ac.uk/people/staff/ruthven/

Rycroft-Smith, Lucy, lucy.rycroft-smith@cambridgemaths.org, Cambridge Mathematics, The Triangle Building, Shaftesbury Road, Cambridge CB2 8EA, +44 1223 556227, www.cambridgemaths.org

Rylands, Leanne, l.rylands@westernsydney.edu.au, School of Computing, Engineering & Mathematics, Western Sydney University, Penrith, NSW,
Australia, +61 2 47360813.

Sadler, Dean, DSadler@cicero.shu.ac.uk, 3 Kimberley Close; Longlevens;Gloucester; Tel: +44 (0)1452 531575

Sakonidis, Haralambos (Babis), xsakonid@eled.duth.gr, Department of Primary Education; School of Education; Democritus University of Thrace;68 100 N. Chili; Alexandroupolis; GREECE; (+30) 25510 30035; Fax: (+30) 25510 30033

Saldaña, María, mabosch@ual.es, Departamento de Didática de la Matemática y de las Ciencias Experimentales; Universidad de Almería; Ctra. de Sacramento; s/n; 04120; La Cañada de San Urbano; Almería; Spain; Tel: 34 (9) 50 01 53 74; Fax: 34 (9) 50 01 57 51.

Salvadori, Anna, anna.salvadori@gmail.com Dipartimento di Matematica e Informatica, Univ. di Perugia, via Vanvitelli, 1 06124 Perugia, Italy 0039 0755855037

Sales, Elielson Ribeiro de, esales@ufpa.br, Graduate Program in Science and Mathematics Education, Institute of Mathematical and Scientific Education, Federal University of Pará. Av. Augusto Corrêa, 1, Guamá, 66075-110, Belém-PA, Brazil, phone +55-91-32018070.

Sangwin, Chris, C.J.Sangwin@bham.ac.uk. School of Mathematics, University of Birmingham, Birmingham, B15 2TT, UK. (+44) 121 414 6197.
http://web.mat.bham.ac.uk/C.J.Sangwin/

Santhanam.S.R , santhanam2015aimer@gmail.com, President , Asoociation of International Mathematics Education and Research ( AIMER ), India

Santos, Silvia, silvia.santos@ara.ac.nz , Learning Services & Mathematics and Statistics, Ara Institute of Canterbury (former Christchurch Polytechnic Institute of Technology (CPIT)), Christchurch, New Zealand, (+64)(3)940 8532 http://www.ara.ac.nz/ and https://www.ara.ac.nz/services-and-support/library/support/maths-support

Sargenti, Ada, Ada.Sargenti@pininfarina.itis.to.it, Istituto Tecnico Industriale G.B.Pininfarina; via Ponchielli 16; I 10024Moncalieri; TO; Italia; Tel: +(39) (0)11 606 2273; Fax: +(39) (0)11 682 0273

Sárvári, Csaba, sarvari@pmmk.pte.hu, Department of Mathematics, Pollack Mihály Faculty of Engineering, University of Pécs, H-7624 Pécs, Boszorkány u. 2., Tel.:36 72 503-650 /3955, http://www.matserv.pmmf.hu/index_en.php

Sanders, Sue, s.e.sanders@swansea.ac.uk, University of Wales Swansea; Department of Education; Hendrefoelan;Swansea SA2 7NB; Wales; UK; Tel: (+44) (0)1792 201231; Fax: (+44) (0)1792 290219

Sanne, Anders, anders.sanne@plu.ntnu.no, Norwegian University of Science and Technology, Programme for Teacher Education, N-7491 Trondheim, Norway, (+47) 73 59 81 51, Fax: (+47) 73 59 10 12

Sasman, Marlene, marlene@malati.wcape.school.za, Mathematics Learning and Teaching Initiative; P.O. Box 647, Bellville, 7535 South Africa; Tel: +27 21 948 6644; Fax: +27 21 948 6686 (now msasman@pgwc.gov.za, Dinaledi, Western Cape Education Department, Fax: +27 21 467 2620 - - information from Alwyn Olivier)

Savard, Annie, annie.savard@mcgill.ca, Integrated Studies in Education, Faculty of Education;McGill University, 3700 McTavish Street, Room 309, Montreal, Quebec, Canada, H3A 1Y2Phone: (+1) 514-398-5150, Fax: (+1) 514-398-4529

Sawatzki, Carly, carly.sawatzki@canberra.edu.au, STEM Education Research Centre (SERC), Faculty of Education, University of Canberra, Bruce, ACT, 2601, Australia, http://canberra.academia.edu/CarlySawatzki

Sayah, Karima, lasmars@yahoo.fr, 23000, Algeria, +213 561958060, Karima Sayah — EducTice

Sayers, Judy M. Sayers judy.sayers@mnd.su.se Department of Mathematics and Science Education, Stockholm University, SE-106 91 Stockholm, Sweden.

Scerri, Mauro, msce1@um.edu.mt, Department of Mathematics; Junior College; University of Malta; Msida MSD 10; Malta. Tel: 356 224271 Ext 231

Schafer, Marc, M.Schafer@ru.ac.za , Rhodes University, Grahamstown 6140, South Africa. +27 46 6038383

Scheiner, Thorsten; t.scheiner@auckland.ac.nz; Mathematics Education Unit, Department of Mathematics, The University of Auckland; Auckland; New Zealand; https://www.thorstenscheiner.com

Schneider, Joel, joels@columbia.edu, Children's Television Workshop; One Lincoln Plaza; New York; New York 10023; U.S.A. ; Tel: 212 875 6564; Fax: 212 875 6104

Schmidt, Mary Ellen, schmidt.22@osu.edu, Teaching and Learning; Ohio State University; Mansfield, Ohio 44906; USA; Tel: (419) 755 4243; Fax: (419) 755 4367

Schoenfeld, Alan, alans@berkeley.edu, Education, EMST, Tolman Hall # 1670, University of California, Berkeley, CA 94720-1670, (+1) (O) 510-642-0968, (F) 510-642-3769, https://gse.berkeley.edu/people/alan-h-schoenfeld

Schultz, James E., schultz@ohio.edu, 517 Indian Oaks Lane, Sheboygan, WI 53081 USA, 920-458-7334

Schwarze, Monika, schwarze@swhamm.de, State Institute of School and Further Education, Soest, Germany; Tel; 02921 683 229; Fax: 02921 683 388

Scott, Joy, ScottJ@educ.curtin.edu.au, Faculty of Education; CurtinUniversity of Technology; Box 1987 GPO; Perth 6001: Australia; Tel: 089 266 2211

Scott, Nick, n.scott@edfac.unimelb.edu.au, Department of Science and Mathematics Education; University of Melbourne; Parkville 3052; AUSTRALIA; Tel: +61 3 9344 8531; Fax: + 61 3 9344 8739.

Seaman, Rick, Rick.Seaman@uregina.ca, Mathematics Education; University of Regina; 3737 Wascana Parkway; Regina; SK S4S 0A2; Canada; Tel: 306 585 4510; Fax: 306 585 4880

Searl, John, J.W.Searl@ed.ac.uk , Edinburgh Centre for Mathematical Education; The University of Edinburgh; Kings Buildings; Mayfield Road; Edinburgh EH13 0E; Scotland; UK; Tel: +(44) 131 650 5044; Fax: +(44) 131 650 6553

Secada, Walter, wsecada@miami.edu, Professor of Teaching and Learning; School of Education; University of Miami; Coral Gables; FL 33124; USA; Tel: 305-284-8356

Seimenis, John, isei@ru.aegean.gr, Department of Mathematics; University of the Aegean; GR-83200 Samos, Greece; or Office for International Cooperation; University of the Aegean; GR-11472 Athens, Greece; Tel: +30 1 6400 194, 195, 196 or +30-273-33914; Fax:+30-1-6468 316, +30-273-33896

Selby, Alan, email: www.whyslopes.com/contact.php, CP 56053,1500 Atwater, Montreal, Canada Qc H3Z 3G3, URL: www.whyslopes.com

Selden, Annie, selden@tntech.edu, Mathematics Department; TennesseeTechnologicalUniversity;Cookeville; TN38505, USA; Tel: 931 372 3442; Fax: 931 372 6353; http://gemini.tntech.edu/~js9484; http://www.maa.org/t_and_l/index.html.

Selden, John, js9484@usit.net, Mathematics Education Resources; P.O. Box 2781; Cookeville; TN 38502; USA; http://www.maa.org/t_and_l/sampler/rs_bio.html.

Selinger, Michelle, m.s.selinger@warwick.ac.uk, Institute of Education; University of Warwick; Coventry; CV4 7AL; U.K.; Tel: + 44 (0)1203 522304; Fax: + 44 (0)1203 524110

Selter, Christoph, christoph.selter@t-online.de, Paedagogische Hochschule Heidelberg; Department of Mathematics; Im Neuenheimer Feld 561; 69120 Heidelberg; Germany; Tel: +6221 477343; Fax: +6 2332 912782

Serrazina, Lurdes, lurdesserrazina@netcabo.pt, Escola Superior de Educação de Lisboa, Rua Carolina Michaelis, 1500 Lisboa, Portugal; Tel: 351 1 711 5500; Fax: 351 1 716 6147

Mamokgethi Setati, setatrm@unisa.ac.za, College of Science, Engineering and Technology, University of South Africa, P O Box 392, Unisa, 0002, Tel. +27 12 4292851, Fax. : +27 86 6596806

Sfard, Anna, AnnaSd@construct.haifa.ac.il, School of Education; University of Haifa; HAIFA 31905; ISRAEL; Tel: 972-4-8240042; Fax: 972-4-8240911

Sgreccia, Natalia Fátima, sgreccia@fceia.unr.edu.ar, nataliasgreccia@gmail.com , Av. Pellegrini 250 - 1° piso (Departamento de Matemática) - Rosario (CP 2000) - Argentina, 54 341 4486827

Shaughnessy, Meghan, mshaugh@umich.edu, University of Michigan School of Education, 610 East University Ave. Ann Arbor, MI, 48109-1259, USA, http://www.soe.umich.edu/people/profile/shaughnessy_meghan/, http://sites.soe.umich.edu/at-practice/.

Shaw, Pamela, Pamela.Shaw@mq.edu.au, Dept of Statistics; EFS; MacquarieUniversity; Sydney NSW 2109; AUSTRALIA; Tel: +61 2 8508561; Fax: +61 2 8507669

Sheath, Geoff, geoffsheath@gmail.com, 17a Cantwell Road; Shooters Hill; London SE18 3LN; UK; Phone: (+44) (0)20 8317 7117

Sheffield, Linda Jensen, sheffield@nku.edu, Mathematics Education, Northern Kentucky University, Emerita, 57 Chalfonte Place, Fort Thomas, KY 41075, USA, Tel: 859-466-7983; Fax: 859-441-3255; http://www.nku.edu/~sheffield

Sherman, Brian, brian.sherman@adelaide.edu.au,University of Adelaide;School of Education, Adelaide; South Australia 5005; Australia; Tel +61 8 8303 5631; Fax +61 8 8303 3604

Shir, Karni, karnishir@gmail,com Shaanan Academic Religious Teachers' College , Haifa, Israel, tel: 972-4-8780015, 972-54-5521219

Shirley, Lawrence, :shirley-l@toe.towson.edu, Department of Mathematics; TowsonStateUniversity;TowsonMD21204-7097; USA; Tel: 410 830 3817; Fax: 410 830 4149; http://www.towson.edu/~shirley

Shukla, Rajaram, a1_ashutosh@yahoo.com , Institute Of Mathematics Testing; Analysis, Training & Research; 566/A Ganesh Chambers; Ramdaspeth,; Nagpur (M.S.) India - 440010

Shultz, Mollee, mollee@umich.edu, University of Michigan, 610 East University Ave. #2404, Ann Arbor, MI 48109-1259, USA, +1-206-817-6597, www.lessonsketch.org

Sibaya, DC, dcsibaya@pan.uzulu.ac.za; University of Zululand; Private Bag X 1001; Kwadlangezwa 3886; Tel: +27 351 93911; Fax: +27 351 941390

Sibbald, Timothy, timothys@nipissingu.ca, Schulich School of Education , Nipissing University, 100 College Dr., Box 5002-59, North Bay, ON, Canada, P1B 8L7, Tel. 705-474-3461 ext. 4653, http://faculty.nipissingu.ca/timothys

Sierpinska, Anna, sierpins@mathstat.concordia.ca, Concordia University, Department of Mathematics and Statistics, 1455 de Maisonneuve blvd. West, Montreal, Quebec, H3G 1M8, Canada, tel: +1-5148482424 extension 3239, http://www.asjdomain.ca/

Sikko, Svein Arne, svein.sikko@hist.no, Høgskolen i Sør-Trøndelag, Avdeling for lærer- og tolkeutdanning, 7004 Trondheim, Norway, Tel. (+47) 735 59904, Fax (+47) 73 55 98 51

Silfverberg, Harry, harry.silfverberg@utu.fi, Department of Teacher Education; University of Turku; Assistentinkatu 5 (Educarium); FI-20014 UNIVERSITY OF TURKU; FINLAND; +358 50 3395 649 (office); +358-44-271 2827 (mobile)

Silverman, Fredrick, flsilve@bentley.univnorthco.edu, University of NorthernColorado; Greeley; Colorado 80639; United States; Tel: 1 970 351 2760; Fax: 1 970 351 1877

Simms, Jackie, SIMSJ@admin.edge-hill-college.ac.uk, Mathematics Dept; Edge Hill College of Higher Education; St. Helens Road; Ormskirk; Lancs L39 4QP; UK; Tel 01695 584385; Fax 01695 579997

Singer, Clifford, csinger@interact.ccsd.net, Clark County School District, 1580 S. Hollywood Blvd., Las Vegas, Nevada 89142, USA

Sinkinson, Anne, a.sinkinson@btinternet.com, University of Cambridge Faculty of Education, 184 Hills Road ; Cambridge; CB2 2PQ; Tel: 01223 313278/01223 767576; Fax: 01223 304222/01223 767665

Skorpen, Leif Bjørn, LeifBS@hivolda.no, Volda University College, P.O.Box 500, N-6101 Volda, Norway, (+47) 70 07 53 59

Skott, Jeppe; jeppe.skott@lnu.se; Department of Mathematics, Linnaeus University, 351 95 Växjö, Sweden; tel.: +45 5090 7278; https://lnu.se/en/staff/jeppe.skott/

Skovsmose, Ole, osk@learning.aau.dk, Institute for Learning; Aalborg University; Langagervej 8; DK-9220 Aalborg East; Denmark; Tel: +45 9635 9781

Skovsmose, Ole, osk@learning.aau.dk, Graduate Program in Mathematics Education, Department of Mathematics Education, Universidade Estadual Paulista - Unesp. Av 24A, 1515, 13506-900 Rio Claro-SP, Brazil, phone +55-19-35269391.

Slezáková, Jana, jana.slezakova@pedf.cuni.cz, Department of Mathematics and Mathematical Eduction, Faculty of Education, Charles University in Prague, M.D. Rettigove 4, 116 39 Praha 1, Czech Republic, (+420) 221900176, Fax: (+420) 221900248 http://kmdm.pedf.cuni.cz

Slonim,Jacob,slonim@cs.dal.ca,Faculty of Computer Science,Dalhousie University,6050 university avenue,Halifax,NS,B3H 1W5,Canada,902 494 3003,fax 902 492 1517, http//www.cs.dal.ca/slonim/htm

Smestad, Bjørn, Bjorn.Smestad@lui.hio.no, Oslo University College; Box 4 St. Olavs plass, N-0130 Oslo, Norway ; Tel: +47 22 45 21 75

Smith, David Langley, david@greygum.com.au, Retired, 13 Davies Road, Ashgrove, Qld 4060; Australia, Mobile: (+61) 4 0996 0481

Smith, David A., das@math.duke.edu , 1408 Shepherd St., Durham NC 27707, Voice: 919-489-5515, Fax: 919-660-2821, www.math.duke.edu/~das

Smith, Erick, erick@pop3serv1.cc.uic.edu, College of Education; MC 147; University of Illinois; 1040 W. Harrison; Chicago, IL 60607; USA; Tel: 312-413-7664; Fax: 312-996-6400

Snape,Tracey; Tracey.snape@canterbury.ac.nz; School of Sciences and Physical Education, College of Education, University of Canterbury, Private Bag 4800, Ilam, Christchurch, New Zealand; Telephone: 010 64 3 345 8194; http://www.canterbury.ac.nz/UCResearchProfile/Researcher.aspx?researcher id=4044244

Soh, Lai-leng, lai.soh@educational-studies.oxford.ac.uk, University of Oxford; Department of Educational Studies; 15 NorhamGardens; Oxford OX2 6PY; Tel: 01865-274024; 01865-274059 (direct line); Fax: +44 (0)1865274027

Sohrabi,Sohrab, sohrabil6@yahoo.com ,Department of Mathematics,Islamic Azad University,Shabestar Branch,shabestar ,Iran,0098 411 4417728

Soler-Álvarez, María Nubia, nsoler@pedagogica.edu.co, Universidad Pedagógica Nacional, Bogotá-Colombia, Tel: (57) 1 5941894 Ext. 256-257.

Solomon, Yvette, y.solomon@mmu.ac.uk, The Education & Social Research Institute, Manchester Metropolitan University, 799 Wilmslow Road, Didsbury, Manchester M20 2RR, Tel:+44 (0)161 247 2567; Fax: +44 (0)161 247 6353 http://www.esri.mmu.ac.uk/resstaff/profile.php?name=Yvette&surname=Solomon

Søndergaard, Bettina Dahl, bdahls@plan.aau.dk, Aalborg Centre for Problem Based Learning in Engineering, Science and Sustainability under the auspices of UNESCO, Aalborg University, Rendsburggade 14, 9000 Aalborg, Denmark, +45 93562388, +45 40810778

Søndergaard, Bettina Dahl, Bettina.Dahl.Soendergaard@uib.no, Department of Mathematics, University of Bergen, Realfagsbygget, Allegaten 41-4, 5007 Bergen, Norway, +47 91510809, +45 40810778

Soto-Johnson, Hortensia, hortensia.soto@unco.edu, University of Northern Colorado, School of Mathematical Sciences, Ross 2240A, work: 970-351-2425, Fax: 970-351-1225

Southwell, Beth, b.southwell@nepean.uws.edu.au, University of Western Sydney Nepean; PO Box 10; Kingswood; New South Wales; 2747;Australia; Tel: 61 2 473 60258; Fax: 61 2 473 60400 (Deceased)

Southwood, Sue, S.Southwood@ru.ac.za; MiST [Mathematics information technology, Science & Technology Education] Coordinator; Education Department; Rhodes University; Grahamstown 6140; South Africa; Tel: +27 46 6038610; Fax: +27 46 6228028

Spagnuolo Alessandro, spglsn@unife.it , Department of Mathematics and Computer Science, University of Ferrara, Via Machiavelli, 35, 44121 Ferrara (Italy), office phone: (+39) 0532 974847, http://it.linkedin.com/pub/alessandro-spagnuolo/90/7a5/b60/

Spanneberg, Rose, R.Spanneberg@ru.ac.za; RUMEP; St. Peter's Building; Grahamstown; 6140 South Africa; Tel: +27 21 461 318 166; Fax +27 21 461 25043

Sparrow, Len, l.sparrow@curtin.edu.au, Faculty of Education; Curtin University of Technology; GPO Box U 1987; Perth; Western Australia; Tel: ++61 8 9266 2159; Fax: +61 8 9266 2547

Speer, William R., william.speer@unlv.edu, Mathematics Learning Center, University of Nevada Las Vegas, 4505 Maryland Parkway, Las Vegas, NV 89154-1099, (702) 895 4885, http://tl.unlv.edu/faculty/speer

Spooner, Kerri kerris@xtra.co.nz, 94 Deep Creek Rd, New Zealand, 0211921639

Sproule, Stephen, 163sls@cosmos.wits.ac.za, Department of Mathematics; University of the Witwatersrand; Private Bag 3; P.O.Wits; Johannesburg; 2050 South Africa; Tel: +27 11 717 6216; Fax: +27 11 403 2017

Squalli, Hassane, Hassane.Squalli@USherbrooke.ca , Département de Pédagogie. Faculté d’éducation. Université de Sherbrooke. Sherbrooke, Qc, J1K 2R1.

Stacey, Kaye, k.stacey@unimelb.edu.au, Melbourne Graduate School of Education, University of Melbourne; 234 Queensberry Street, University of Melbourne 3010; AUSTRALIA; Tel: +61 417 399 745

Stahl, Rainer, R.Stahl@tu-bs.de, Technische Universitaet Braunschweig; FB 10; Institut fuer Mathematik und ihre Didaktik; Pockelsstrasse 11; 38106 Braunschweig; Germany; Tel 0531 391 2830; Fax 0531 391 8212

Stallings, Lynn, mstlls@panther.gsu.edu, Middle/Secondary Education and Instructional Technology; Georgia State University; University Plaza; Atlanta; Georgia 30303-3083; USA; Tel: 404 651 0201; Fax: 404 651 2546; http://www2.gsu.edu/~mstlls

Steffe, Leslie lsteffe@coe.uga.edu, 105 Aderhold Hall; Department of Mathematics Education; University of Georgia; Athens, Georgia 30602; USA; Tel: 706 542 4194; Fax: 706 542 4551

Stehlíková, Naďa, nada.stehlikova@pedf.cuni.cz, Department of Mathematics and Mathematical Eduction, Faculty of Education, Charles University in Prague, M.D. Rettigove 4, 116 39 Praha 1, Czech Republic, (+420) 221900252, Fax: (+420) 221900248 http://kmdm.pedf.cuni.cz

Stein, Martin, steinm@math.uni-muenster.de, Universitaet Muenster, Institut fuer Didaktik der Mathematik, Einsteinstr. 62, D - 48149 Muenster, Germany; Tel: + 49 251 8339430; Fax: + 49 2571 97461

Steinbring, Heinz, heinz.steinbring@Post.uni-bielefeld.de; heinz.steinbring@math.uni-dortmund.de, Inst. f. Didaktik d. Mathe.; Universitaet Dortmund; Vogelpothsweg 87; D-44221 Dortmund; Tel.: + 49 (0) 231 755 2176; Tel.: + 49 (0) 231 75 52 948 Sek.; Fax: + 49 (0) 231 755 5307

Steinle, Vicki, v.steinle@unimelb.edu.au, Melbourne Graduate School of Education, 234 Queensberry Street, University of Melbourne, Vic 3010 Australia, +61 3 8344 8525

Stevens, Ian, ian.stevens@minedu.govt.nz ,PO Box 1666, Thorndon, Wellington 6140, New Zealand, 04 4637749 (NZ)

Stevenson, Ian, ian.stevenson@kcl.ac.uk, Department of Education and Professional Studies, King's College London, Waterloo Road, London SE1 9NH, (+44) (0) 207 8483117, Fax: (+44)(0) 207 8483182 , http://www.kcl.ac.uk/schools/sspp/education/staff/istevenson.html

Stevenson, Mary,_stevenm,@hope.ac.uk_Faculty of Education; Liverpool Hope University; Hope Park; Liverpool L16 9JD; UK; (+44) (0) 151 291 3613; http://www.hope.ac.uk/stevenm

Steward, Susan, s.steward@uea.ac.uk, School of Education, University of East Anglia; Norwich NR4 7TJ; UK; Tel: 01603 592639; Fax: 01603 593446

Stinson, David, W., dstinson@gsu.edu, Department of Middle-Secondary Education and Instructional Technology, College of Education, Georgia State University, P.O. Box 3979, Atlanta, GA, USA 30302-3978, 404-413-8409

Stols, Gerrit, gerrit.stols@up.ac.za, Department of Science, Mathematics & Technology Education; University of Pretoria; Pretoria; 0002; South Africa; Tel: +27 12 420 5750 (office); https://school-maths.com

Stott, Deborah Ann , d.stott@ru.ac.za, Education Department, Rhodes University, P O Box 94, Grahamstown, 6140 www.ru.ac.za/sanc/

Strang, Rebekah. r.strang@griffith.edu.au, Griffith Institute for Educational Research, School of Education and Professional Studies, Griffith University, Gold Coast campus, Gold Coast, Queensland 4222, Australia, (+61) (0)7 55528636, Fax: (+61) (0)7 55528599, https://experts.griffith.edu.au/academic/r.strang

Strom, April, april.strom@sccmail.maricopa.edu, Scottsdale Community College, 9000 W Chaparral Rd, Scottsdale, AZ 85256, Tel: (480) 425-6746

Strømskag, Heidi, heidi.stromskag@ntnu.no, Norwegian University of Science and Technology, Department of Mathematical Sciences, Alfred Getz’ vei 1, Sentralbygg 2, N-7491 Trondheim, Norway, Tel. (+47) 73 59 17 43 (office), (+47) 98 44 18 39 (mobile).

Stylianides, Andreas, as899@cam.ac.uk, University of Cambridge; Faculty of Education; 184 Hills Road; Cambridge CB2 8PQ; UK; Tel.: (+44) (0)1223 767550; https://www.educ.cam.ac.uk/people/staff/stylianides/

Suffolk, John: john.suffolk@ubd.edu.bn, University of Brunei, P. O. Box 375, Sengkurong, BG 1121.Brunei; Phone and fax: (+673) 2612019.Mobile (+673) 8622874

Sugden, Stephen, ssugden@gmail.com, 171 Tallai Rd Tallai 4213 Queensland Australia, +61 407 762 837, http://epublications.bond.edu.au/ejsie/

Swan, Paul, p.swan@ecu.edu.au, Edith Cowan University, Joondalup Drive, Joondalup, Western Australia, 6027; Australia: Tel (08) 6304 5224; Fax: 6304 5850.

Swanson, Dalene, dalene .swanson@stir.ac.uk, Faculty of Social Sciences, University of Stirling, Scotland, UK.

Syarifuddin, Hendra, hendrasy@yahoo.com, Mathematics Department of Padang State University, Padang, West Sumatra, Indonesia

Stylianides, Gabriel, gabriel.stylianides@education.ox.ac.uk, University of Oxford; Department of Education; 15 Norham Gardens; Oxford OX2 6PY; UK; Tel.: (+44) (0)1865 611 002; http://www.education.ox.ac.uk/about-us/directory/professor-gabriel-stylianides/

Szász, Réka, reka.szasz@bsmeducation.com, 1022 Budapest, Herman Ottó út 25/c, Hungary, +3670 2535 210, https://bsmeducation.com/

Szuscikiewicz, Jill, jsz@conceptstew.co.uk, Concept Stew Ltd, 139 Brick Lane, London, E1 6SB, UK (+44) (0)20 7163 3178, Mob: (+44) (0)7771 562 190, http://www.conceptstew.co.uk

Tait, Elizabeth, emtait@vodamail.co.za, Crawford College La Lucia, P O Box 250, Gillitts, KZN, 3610, RSA, (+27) (0) 83 6406160, Fax(+27) (0) 31 562 0057

Tall, David, david.tall@warwick.ac.uk, Institute of Education, University of Warwick, Coventry, CV4 7AL. Home address for direct contact: 21 Laburnum Avenue, Kenilworth, Warwickshire, CV8 2DR. Tel. 01926 856728

Tanner, Howard, howard.tanner@sm.uwtsd.ac.uk, Reader in Education, SWWCTE; Townhill Road; Swansea SA2 0UT, UK; Tel: (+44) 1792 482019, Mob: 07967 004273, http://www.uwtsd.ac.uk/staff/howard-tanner

Tassell, Janet Lynne Hagemeyer, janet.tassell@wku.edu, School of Teacher Education, 314 Tate Page Hall, Western Kentucky University, 42101, Bowling Green, KY, 270 745 5306, http://edtech.wku.edu/~jtassell/

Tattersall, James, tat@providence.edu, Department of Mathematics and Computer Science, Providence College, 1 Cunningham Square, Providence, RI 02918, USA, (401) 865 2468.

Taylor, Bret, Bret.Taylor@cui.edu, Mathematics Department, Concordia University, 1530 Concordia West, Irvine, CA 92612 USA, Tel: 949-214-3294

Tchoshanov, Mourat, mouratt@utep.edu, Dept. of Mathematical Sciences and Teacher Education, EDU612, 500 W. University Avenue, El Paso, TX 79968, USA, +1-915-747-7668.

Tenga, Patrick, patrice.tenga@unhorizons.org, Nouveaux Horizons University, PO Box 1946 Lubumbashi, Haut-Katanga, Democratic Republic of the Congo, +243-997931956Teppo, Anne, arteppo@theglobal.net. PO Box 570, Livingston, MT 59047

Tesaker, Berit, tesaker@slh.svglh.no, School of Education; StavangerCollege; 4004 STAVANGER; NORWAY; Tel: +(47) 51833528; Fax: +(47) 51833550

Tennant, Geoff; gdt3@le.ac.uk, School of Education; 21 University Road; Leicester LE1 7RF; Tel: +44 (0)116 252 3730; Fax: 0116 252 3653

Testov, Vladimir, vladafan@inbox.ru, Stategy of mathematics education,

Yaroslavskaya st., 23, 89, Vologda, Russia, +79115036699, URL: http://e-koncept.ru/2016/46106.htm.

Thai, Thuan, thuan.thai@nd.edu.au, School of Education, University of Notre Dame Australia, Pioneer House, 128-140 Broadway, Chippendale, NSW, 2007, Australia. Phone: +61 (2) 8204 4620, http://www.nd.edu.au/sydney/schools/education/staff/thuan-thai

Thomas, Cynthia, cynthia.thomas@uprovidence.edu, University of Providence, Great Falls, MT 59405, USA, (406) 403 1372, math-ed.com

Thomas, David, david.thomas@uprovidence.edu, University of Providence, Great Falls, MT 59405, USA, (406) 403 5895, math-ed.com

Thomas, Jan, jan.thomas41@gmail.com, Senior Fellow http://amsi.org.au, +61 041 900 6205

Thomas, Mike, m.thomas@math.auckland.ac.nz, Mathematics Education Unit; Department of Mathematics; The University of Auckland; PB 92019; Auckland; New Zealand; Tel: 010 64 9 373 7599 ext 8791; Fax: 010 64 9 373 7457; http://www.math.auckland.ac.nz/~thomas/staff/mt/mt.html

Thomas, Rachel, rgt24@cam.ac.uk, Millennium Mathematics Project, University of Cambridge, Centre for Mathematical Sciences, Wilberforce Road, Cambridge CB3 0WA, Phone: 01223 764268, http://plus.maths.org

Thornton, Steve, steve.thornton@science.org.au, Australian Academy of Science, Canberra, 2601, Australia, Tel 61 2 6201 9430

Thorvaldsen, Steinar, steinar.thorvaldsen@uit.no, University of Tromsø, ILP, Mellomveien 110, N-9293 Tromsø, (+47) 77 66 04 76, http://wo.uio.no/as/WebObjects/frida.woa/6/wa/personVis?type=PERSON&pnr=109731&la=en&inst=185

Tshimanga Ilunga, Jean, ilungatshimanga@yahoo.fr, Nouveaux Horizons University, PO Box 1946 Lubumbashi, Haut-Katanga, Democratic Republic of the Congo, +243-990898198,

Tichá, Marie, ticha@math.cas.cz, Department of Didactics of Mathematics, Institute of Mathematics, AS CR, Žitná 25, 115 67 Praha 1, Czech Republic, (+420) 222090726, Fax (+420) 222090701, http://www.math.cas.cz

Tobias, Steve, s.tobias@bendigo.latrobe.edu.au, School of Arts and Education; Mathematics Education; La Trobe University; Bendigo 3552; Victoria; AUSTRALIA; Tel: 61 3 54447335; Fax: 61 3 54447800

Toerner, Guenter_, guenter.toerner@uni-due.de_, Faculty of Mathematics, University of Duisburg-Essen, Forsthausweg 2, Duisburg 47057, Germany, (+49) (0) 203 379 2668, Fax: (+49) (0) 203 379 2528, http://www.uni-due.de/mathematik/agtoerner/toerner.shtml

Tomás Ferreira, Rosa; rferreir@fc.up.pt; Faculdade de Ciências, Universidade do Porto, Rua do Campo Alegre, 4169-007 Porto, Portugal; (00 351) 220 402 804; Fax (00 351) 220 402 108

Torben, Teimer, tote@uv.khs.dk, KoegeBusinessCollege; Lyngvej 19; DK 4600 Koege; Denmark; Tel: +45 56 67 04 00; Fax +45 56 63 00 18

Torra, Montserrat, torra@ipf.es, Universitat Oberta de Catalunya; mtorra@campus.uoc.es; and CEIP Renaixença Pl. Independencia 1; 08240 Manresa; Spain

de la Torre, Enrique, torref@udc.es, Departamento de Pedagogia y Didactica de las Ciencias Experimentales; Universidade da Coruña; Paseo de Ronda, 47; 15011 - A Coruña; SPAIN; Tel: 34 (81) 167000; Fax: 34 (81) 167 115

Tortora, Roberto, roberto.tortora@unina.it, Dipartimento di Matematica e Applicazioni “R. Caccioppoli” – Complesso Universitario Monte S. Angelo – Via Cintia – 80126 Napoli (Italy), +39081675614 – +

Tosmur-Bayazit, Nermin, nbayazit@gsu.edu, 30 Pryor Street Suite 609 Atlanta GA 30339 USA, 1-404-413-8406, http://education.gsu.edu/profile/nermin-bayazit/

Tourret, Tony, A.V.Tourret@greenwich.ac.uk, University of Greenwich; Southwood Site; Avery Hill Road; New Eltham; London SE9 2PQ; UK; Tel: +44 (0)181 326 9349

Touval, Ayana, Ayana.Touval@Montgomerycollege.edu, Math Dept, 51 Mannakee Street, Rockville, MD 20850 Home tel: 1 301 493 8278

Towers, Jo, towers@ucalgary.ca, Faculty of Education, EDT 1104, University of Calgary, 2500 University Drive NW, Calgary, AB, T2N1N4, Canada, (001) 403-220-7366, Fax: (001) 403-282-8479.

Townsend, Ruth, R.E.Townsend@greenwich.ac.uk, School of Education; University of Greenwich; Bexley Road; London SE9 2PQ; UK; Tel: 0181-331-9515; FAX: 0181-331-9504

Trenholm, Sven, sven.trenholm@unisa.edu.au, University of South Australia, Mawson Lakes Campus, Garth Boomer Building, Office G2-27, Adelaide, SA 5095, +61 (08) 830 26358, http://people.unisa.edu.au/Sven.Trenholm

Trinick, Tony, t.trinick@auckland.ac.nz , University of Auckland, Te Puna Wananga, Faculty of Education, P B 92601, Symonds Street, Auckland, 1024, New Zealand, Ph 09 623 8899 Extn 48905, Fax 09 623 8897

Tripathi, Mukut Mani, mmtripathi66@yahoo.com , mmtripathi66@gmail.com, Department of Mathematics, Institute of Science,
Banaras Hindu University, Varanasi 221005, India, 091-9453559944, http://www.bhu.ac.in/mathematic/faculty.php

Truran, Kath, Kath.Truran@unisa.edu.au, University of South Australia; Magill Campus; St Bernard's Road; Magill; South Australia 5072; Tel: + 618 8302 4676; Fax: + 618 8302 5101

Tsami, Eleni, etsami@unipi.gr Department of Statistics & Insurance Science, University of Piraeus, 80, Karaoli & Dimitriou st, 18534 Piraeus, Greece, (+30)2104142408.

Tugwell, Andrew, andrew.tugwell@ffk.vgs.no, Alta Videregående Skole (Further Education College), Skoleveien 15, 9510 ALTA , Norway, (+47) 90013321

Tuomela, Dimitri, dimitri.tuomela@oulu.fi, University of Oulu, Laaksokuja 6 90850 Martinniemi Finland, +358405811384, http://cc.oulu.fi/~taturiik/

Tuominen, Anu, anu.tuominen@utu.fi, Department of Teacher Education; University of Turku; Assistentinkatu 5 (Educarium); FI-20014 UNIVERSITY OF TURKU; FINLAND; Tel: +358 29 450 3645

Turgut, Melih, _mturgut@ogu.edu.tr_, Department of Mathematics Education, Faculty of Education, Eskisehir Osmangazi University, Meselik Campus, Eskisehir, Turkey, (+90) 222 239 3750-1614, Fax: (+90) 222 229 3124.

Turner, Mark, markt@chch.PlaNet.co.nz, Hillmorton High School; P.O. Box 33 115; Tankerville Road; Christchurch; New Zealand; Tel: +64 3 385 119; Fax:+64 (03)338 1609.

Tuska, Agnes, agnest@csufresno.edu, Department of Mathematics, California State University, Fresno, 5245 N. Backer Avenue, MS/PB 108, Fresno, CA, 93740-8001, (559)278-2512, FAX: (559)278-2872.

Twohill, Aisling, aisling.twohill@dcu.ie, DCU Institute of Education, School of STEM Education, Innovation and Global Studies, Drumcondra, Dublin 9, D09 DY00, Ireland, 086 600 2823, http://www4.dcu.ie/stem_education_innovation_global_studies/people/Aisling-Twohill.shtml

Tynan, David, d.tynan@edfac.unimelb.edu.au, Research Fellow; Department of Science and Mathematics Education; University of Melbourne; Tel: 613 93448527; Fax: 613 93448739

Tzekaki, Marianna, tzekaki@nured.auth.gr, School of Education; Aristotle University of Thessaloniki; 54006 Thessaloniki; Greece; Tel: + 30 31 99 5037; Fax: + 30 31 99 5098

Usman, Kamoru Olayiwola, layiusman@yahoo.com, Mathematics Unit, Science Education Department, University of Nigeria, Nsukka Nigeria, 234-8057377864, 234-07063003468

Uy, Frederick, fuy@calstatela.edu, Division of Curriculum and Instruction; CaliforniaStateUniversity, Los AngelesCA; 90032; U.S.A.; Tel: 1 323 343 4350; Fax: 1 343 5468.

Uzuriaga-López, Vivian Libeth, vuzuriaga@utp.edu.co, Universidad Tecnológica de Pereira, Pereira-Colombia, Tel (57) 6 3137146, cel (57) 313 671 41 68

Vacaretu, Ariana-Stanca, ariana.vacaretu@gmail.com , 10/7 Memorandumului street, 400114 Cluj-Napoca, Romania ; Phone: +40 745646004

Vale, Isabel, isabel.vale@ese.ipvc.pt, School of Education, Institute Polythecnic de Viana do Castelo, Portugal

Valero, Paola paola@dcn.auc.dk, DCN; AalborgUniversity; 9220 Aalborg East; Denmark; Tel. +45 96359782; Fax +45 98156542

Van den Heuvel-Panhuizen, Marja, m.vandenheuvel@fi.uu.nl, Freudenthal Institute, Utrecht University, P.O. Box 9432, 3506 GK Utrecht, The Netherlands, T+31(0)2635548, F+31(0)2660430, http://www.fi.uu.nl/~marjah

Van der Hoff, Quay, quay.vanderhoff@up.ac.za, Department of Mathematics and Applied Mathematics, University of Pretoria, South Africa, (+27) (0) 012 4202785, http://www.up.ac.za/maths

van Dormolen, Joop, joop_v@netvision.net.il , Neot Golf D214, Caesarea 30889, Israel, Tel: (+972) (0)4 6269741, Mobile: (+972)(0)544 860961

Van Wagoner, Kathryn, kathrynvanwagoner@weber.edu, Weber State University, Ogden, UT 84408, USA, (801) 626 7448

Van Zoest, Laura, laura.vanzoest@wmich.edu, Western Michigan University; Department of Mathematics; Kalamazoo MI 49008; USA; Tel: (269) 387-4527; Fax: (269) 387-4530; http://wmich.edu/math/directory/van-zoest

Velasco, Carlos, ca.velasco95@uniandes.edu.co, “una empresa docente”, Facultad de Educación, Universidad de los Andes, Bogotá, Colombia, (+571)3394949 ext. 3290, http://ued.uniandes.edu.co

Veloso, Eduardo, veloso@mail.telepac.pt, Av. D. Rodrigo da Cunha; 11 3º D; 1700 Lisbon; Portugal; Tel. & Fax.: (351) (1) 848 3046

Vergel-Causado, Rodolfo, rodolfovergel@gmail.com, Universidad Distrital Francisco José de Caldas, Bogotá-Colombia, Tel: (57) 1 8057343, mobile: 3108146632

Vermeulen, Nelis, vern@edutech.ctech.ac.za; Cape Technikon; Cape Town; 8000 South Africa; Tel: +27 21 460 3332; Fax: +27 21 887 9020

Vertes, Robert N (known as Bob), bobv@smuc.ac.uk; St Mary's University College, Twickenham, London, TW1 4SX, UK , (+44) (0) 208 240 4154 Fax: (+44) (0) 208 240 4256

Veselovsky, Aleksanrda, aveselovsky@nl.edu, Teacher Preparation, National Louis University, 1000 Capitol Drive, Wheeling, IL, 60090, USA, 1-847-947-5608

Vile, Adam, vileawa@vax.sbu.ac.uk, Centre For Mathematics Education; School of Computing Information Systems and Mathematics; Southbank University; 103 Borough Roa; London SE1 OAA; UK; Tel+44 (0)171 815 7440; Fax: +44 (0)171 815 8155

Villarreal, Monica Ester, mvilla@caviar.igce.unesp.br, Programa de Pos-GraduaÁao em Educacao Matematica; Universidade Estadual Paulista (UNESP); Av. 24 A n. 1515; Bela Vista; CEP:13506-700; Rio Claro SP; Brasil; Tel/Fax: 55 19 534 0123

Visnovska, Jana, j.visnovska@uq.edu.au, School of Education, The University of Queensland, St Lucia, QLD 4072, Australia, (+61) (0) 7 3365 6465, http://www.uq.edu.au/uqresearchers/researcher/visnovskaj.html

Vistro-Yu, Catherine P., cvistro-yu@ateneo.edu , Mathematics Department, Ateneo de Manila University, Katipunan Avenue, Loyola Heights, Quezon City 1108 PHILIPPINES, Tel/Fax (+63) (2) 426 6125, http://mathsci.math.admu.edu.ph/~vistroyu/

Vithal, Renuka, rvithal@pixie.udw.ac.za; Faculty of Education; University of Durban Westville; Private Bag X54001; Durban; 4000 South Africa; Tel: +27 31 820 2587; Fax: +27 31 260 2866 2602,

Volmink, John, volmink@admin.und.ac.za, University of Natal, Durban 4041; South Africa; Tel: +27 31 260 2395; Fax: +27 31 260 2812

Vos, Pauline; fpvos@hotmail.com; University of Agder, Mathematical Sciences, Post box 422, NO-4604 Kristiansand, NORWAY, Tel. +47 3814 2332, Fax +47 3814 1071

Voskoglou, Michael Gr. , Technological Educational Institute (T.E.I.), School of Technological Applications, 263 34 Patras, Greece. Tel.-Fax: 00302610328631, Mobile tel. 00306978600391, e-mail: voskoglou@teipat.gr ; mvosk@tellas.gr.

Wæge, Kjersti, kjersti.wage@plu.ntnu.no, Norwegian University of Science and Technology, Programme for Teacher Education, N-7491 Trondheim, Norway, (+47) 73 59 04 66, Mob: (+47) 91 89 76 22, Fax: (+47) 73 59 10 12, http://www2.svt.ntnu.no/ansatte/ansatt.aspx?id=373

Wagner, Anke, wagner02@ph-ludwigsburg.de, Pädagogische Hochschule, Ludwigsburg, Reuteallee 46, 71634 Ludwigsburg, Germany, (+49)(0)7141/140381, http://www.ph-ludwigsburg.de/3951.html

Wagner, David, dwagner@unb.ca, Faculty of Education, University of New Brunswick, Fredericton, New Brunswick, E3B 5A3, Canada, (+1) 506-447-3294, Fax: (+1) 506-453-3569, http://www.unbf.ca/education/faculty/wagner.html

Wain, Andrew, andyw@peninsula.starway.net.au, Rosebud Secondary College; Rosebud 3939; Victoria; Australia; Tel: (059) 868595; Fax: (059) 81 2276; http://www.srl.rmit.edu.Au/mav/PSTC/index.html

Waldegg, Guillermina, gwaldega@mailer.main.conacyt.mx, Centre for Research and Advanced Studies Department of Methodology and ; Theory of Science; Gomez Farias 64; 04100 Mexico D F; Mexico; Tel: +52 (5)658 78 95; Fax: +52 (5)658 78 85

Walker, Peter, peter.walker@cantab.net, 7, Redgrove Park, Cheltenham GL51 6QY, UK, tel: (+44) (0) 1242 515527

Wallis, Rachel, rachel.wallis@sm.uwtsd.ac.uk, University of Wales Trinity Saint David, Swansea Townhill Campus, Townhill Road, Swansea, SA2 0UT

Watson, Anne, anne.watson@edstud.ox.ac.uk, Department of Educational Studies; University of Oxford; 15 Norham Gardens; Oxford OX2 6PY; UK; Tel: +44 (0)1865-274052; Fax: +44 (0)1865 274027

Walls, Fiona, fiona.walls@jcu.edu.au , C/- School of Education, James Cook University, Townsville, Queensland 4811, Australia, Ph: 61 7 4781 4684

Walshaw, Margaret, m.a.walshaw@massey.ac.nz, School of Curriculum and Pedagogy; Massey University; Private Bag 11222; Palmerston North; New Zealand; Tel: +64 06 3569099 ext 8782; Fax: +64 06 351 3472.

Warner, John, j.warner@edfac.unimelb.edu.au, Faculty of Education; University of Melbourne; Parkville Vic 3052; AUSTRALIA; Tel: +61 (0)3 9344-8524; Fax: +61 (0)3 9344-8739

Watanabe, Tad, twatanab@kennesaw.edu, Kennesaw State University, 275 Kennesaw State University Rd., NW, MD 1102, Kennesaw, GA 30144, USA, http://ksuweb.kennesaw.edu/~twatanab/

Watson, Peter peter.watson@aut.ac.nz School of Computing and Mathematical Sciences; Faculty of Design and Creative Technologies; Auckland University of Technology; Private Bag 92006; Auckland 1142; New Zealand; Tel: +64 9 921 9999 ext.8668; Fax: +64 9 921 9944

Way, Jenni. j.way@nepean.uws.edu.au, Faculty of Education; University of Western Sydney; Nepean; PO Box 10; Kingswood 2777; Australia. Tel: +61 047 360381

Webb, Derek, dwebb@bemidjistate.edu Department of Mathematics and Statistics, Bemidji State University, Minnesota, USA, Tel: 218-755-2846, http://faculty.bemidjistate.edu/dwebb/

Webb, John, jhwebb@maths.uct.ac.za, Department of Mathematics; University of Cape Town; Rondebosch; 7700 SOUTH AFRICA; Tel: 27 21 650 3193; Fax: 27 21 650 3159

Webb, Lyn, lyn.webb@nmmu.ac.za, Faculty of Education, P.O. Box 77000, Nelson Mandela Metropolitan University, Port Elizabeth, South Africa, 6031. +2784 770 4111

Wedege, Tine, tiw@mmf.ruc.dk, IMFUFA; Roskilde University; Postbox 260; 4000 Roskilde; Denmark; Tel.(+45) 4674 2000 direct line 2046; fax.(+45) 4674 3020

Wells, David, davidggwells@yahoo.co.uk, 27 Cedar Lodge, Exeter Road, London NW2 3UL. Tel: 0208-208-2045

Weinstein, Gideon, gideon.weinstein@wgu.edu, Western Governors University, 328 Madison Avenue East, Rensselaer, NY 12144, USA, 877-435-7948 x1876

Weinzweig, Izzie, izzie@maverick.math.uic.edu, Dept. MSCS m/c249; University of Illinois at Chicago; 851 S. Morgan; Chicag; IL 60607; USA; Telephone:(312)-996-8612; Fax: (312)-996-1491

Wenninger, Magnus, mwenninger@csbsju.edu, Saint John’s Abbey, Collegeville, MN, 56321 2015 USA, 320 363 3885, Fax: 320 363 3039, http://www.saintjohnsabbey.org/wenninger/

Wessels, Dirk Cornelis Johannes. dirkwessels@sun.ac.za. 2 Henning Street, Strand, 7140. +27 828595214. RUMEUS, Stellenbosch University, South Africa.(in intensive care February 2018)

Wessels, Helena, hwessels@sun.ac.za, Research Unit for Mathematics Education; Dept of Curriculum Studies; Education Faculty; GG Cillie Building; Stellenbosch University, South Africa; 7602; Tel +27-21-8082286; Fax +27-86-6295488 (sadly deceased February 2018)

White, Allan. al.white@uws.edu.au, School of Education; University of Western Sydney; Penrith; Locked Bag 1797 Penrith South DC NSW 1797; Australia. Tel: +61 047 360252

White, Bruce, Bruce.White@unisa.edu.au, University of South Australia, Mawson Lakes Boulevard, Mawson Lakes, South Australia 5095, +61 8 83025373, http://people.unisa.edu.au/Bruce.White

White, Dorothy, dwhite@coe.uga.edu, Department of Mathematics Education; University of Georgia; 105 Aderhold Hall; Athens; Georgia 30602; USA; Tel: 706 542 4194; Fax: 706 542 4551

White, Paul, paul.white@acu.edu.au, School of Education, Australian Catholic University, NSW 2135, Australia; (+61) (2) 9701 4250; Fax: (+61) (2) 9701 4034

Whiteley, Walter, whiteley@mathstat.yorku.ca, Department of Mathematics and Statistics, York University, 4700 Keele Street, Toronto, Ontario, M3J 1P3 416-736-2100 ext 22598, fax 416-736-5757 http://www.math.yorku.ca/~whiteley/

Wierzejewski, Jedrzej, jedrzej.wierzejewski@pwr.edu.pl, Department of Mathematics, Wroclaw University of Technology, Wybrzeze Wyspianskiego 27,PL-50-370 Wroclaw, Poland, +48 71 320 25 29

Wiliam, Dylan, Udue132@kcl.ac.uk,School of Education; King's College London; Cornwall House; Waterloo Road;London SE1 8W; UK; Tel 0171 872 3153; Fax 0171 872 3182

Williams, Gaye, gaye.williams@deakin.edu.au, Faculty of Education; Deakin University; Burwood; Victoria; 3125; Australia; TEL: +613 92446629; Fax: +613 9244 6834

Williams, Julian, williams@fs4.ed.man.ac.uk, Centre for Mathematics Education; ManchesterUniversity; Oxford Road; Manchester; UK

Wilson, Dave, D.Wilson@mmu.ac.uk, Didsbury School of Education; Manchester Metropolitan University; 577 Wilmslow Road; Didsbury; Manchester; UK; Tel: +44 0161 247 2284; http://s13a.math.aca.mmu.ac.uk/

Wilson, James, jwilson@coe.uga.edu, Department of Mathematics Education; University of Georgia; Athens; Georgia 30602; U.S.A.; Tel: 706 542 4552; Fax: 706 542 4551; http://jwilson.coe.uga.edu

Wilson, Paticia, pwilson@coe.uga.edu, Department of Mathematics Education; University of Georgia; 105 Aderhold Hall; Athens; Georgia 30602-7124; USA; Tel: (+1) 706 542 4547; Fax: (+1) 706 542 4551

Wilson, Paul, UCP Marjon, Derriford Road, Plymouth, Devon, PL6 8BH, 01752 636700 ext 4348 pjwilson@marjon.ac.uk

Wilson, Stephen S, ssw@StephenSWilson.co.uk, 31 Harp Hill, Cheltenham GL52 6PY, UK, tel: (+44) (0) 1242 254610, fax: +(44) (0) 1242 254610, web: www.StephenSWilson.co.uk

Winbourne, Peter, winboupc@vax.sbu.ac.uk, Centre for Mathematics Education; SCISM; South Bank University; 103 Borough Road; London SE1 0AA; UK; Tel 0171 815 7452; Fax 0171 815 7499

Winsløw, Carl ; winslow@ind.ku.dk ; University of Copenhagen, Dept. of Science Education, Øster Voldgade 3, 1350 København K, Denmark; +45 35 32 04 33; www.ind.ku.dk/winslow

Winitzky de Spinadel, Vera Martha, vspinade@fibertel.com.ar, Jose M. Paz 1131, Florida (1602), Buenos Aires, Argentina, 054-11-4795-3246.

Winter, Jan, Jan.Winter@bristol.ac.uk, University of Bristol; School of Education; 35 Berkeley Square; Bristol BS8 1JA; UK; Tel: +44 0117 928 7025

Winter, Mary, winter@math.msu.edu, Department of Mathematics; Michigan State University; East Lansing; MI 48824; USA; Tel: 517.353.6337; Fax: 517.432.1562; http://math.msu.edu:80/~winter/

Womack, David, uspdave123@hotmail.co.uk, 102 Windermere Rd, Kendal, Cumbria, LA95EZ, U.K., +44 (0)7582244800, Consultant Maths Education retired (ex Kenya, Namibia, University of West Indies, University of South Pacific). http://www.davidwomack.co.uk,

Wong, Khoon Yoong, khoonyoong.wong@nie.edu.sg, Mathematics and Mathematics Education; National Institute of Education; 1 Nanyang Walk; S(637616); Singapore; Tel: (65) 62196128; Fax: (65) 6896 9417; http://math.nie.edu.sg/people/acad/staffdetail/WongKhoonYoong.html

Wood, Terry, twood@purdue.edu, Department of Curriculum and Insrtruction; 1442 LAEB; Purdue University; West Lafayette; IN; 47907-1442, U.S.A.; Tel: (765) 494 5889; Fax: (765) 494 7938

Wooldridge, David, David.Wooldridge@beds.ac.uk , University of Bedfordshire; Polhill Avenue; Bedford MK41 9EA; UK; Tel: (+44) (0)123 4351 671 ext 4104; Direct: (+44) (0)123 479 3104; Fax: (+44)(0)123 421 7738

Wooldridge, Irene, Irene.Wooldridge@beds.ac.uk , University of Bedfordshire; Polhill Avenue; Bedford MK41 9EA; UK; Tel: (+44) (0)123 435 1671 ext 4102; Direct: (+44) (0)123 479 3102; Fax: (+44)(0)123 421 7738

Wright, Vince, vince@waikato.ac.nz, School Support Services; School of Education; The University of Waikato; PB 3105; Hamilton; New Zealand; Tel: 010 64 7 858 5075 ext 7254; Fax: 010 64 7 858 5217

Wyneken, Matt, mwyneken@umflint.edu, Elementary Education Mathematics, School of Education & Human Services, University of Michigan-Flint, Flint, Michigan, USA, 810 762 3260, Fax: 810 762 3102, http://www.umflint.edu/education/

Yanik, H.Bahadir, hbyanik@anadolu.edu.tr, Center for Mathematics Education, Faculty of Education, Anadolu University, 26470, Eskisehir, Turkey, (+90) (222) 335 05 80, Fax: (+90) (222) 335 36 16

Yap, Aida I., aiyap@up.edu.ph, University of the Philippines National Institute for Science and Mathematics Education Development, Diliman, Quezon City, Philippines 1101, Tele/fax (+63)(2) 9283545.

Yasukawa, Keiko, keiko@eng.uts.edu.au, Faculty of Engineering/Faculty of Education; Sydney University of Technology; PO Box 123; Broadway 2007; Sydney; Australia; Tel: +61 02 9514 2437; Fax: +61 02 9514 2435.

Yusha'u, Muhammad Awwal, yushaumuhammadawwal@yahoo.com, Department of Science and Vocational Education, Faculty of Education and Extension Services, Usmanu Danfodiyo University, Sokoto. P M B 2346 Sokoto-Nigeria; Tel: +234 803 597 3625, https://udus.academia.edu/Dr Muhammad Awwal Yusha'u

Yusof, Yudariah Mohammad, yudariah@utm.my, yudariah@live.com, Universiti Teknologi Malaysia, Faculty of Science, Johor Bahru, 81310 Johor. Malaysia, (+06)(0197609600)

Zabala, Jesus M. Gogni, topgozaj@sf.ehu.es, FICE- Avda Tolosa 70; 20008 San Sebastian; Spain; Tel: 34-43-310600; Fax: 34-43-311056

Zapata-Cardona, Lucía, luzapata@ayura.udea.edu.co , Facultad de Educación, Universidad de Antioquia, Calle 67 No. 53 – 108, Medellín, Colombia. Tel: (57) (4) 219 57 27

Zembat, Ismail Ozgur; i_zembat@uaeu.ac.ae; United Arab Emirates University, College of Education, Department of Curriculum & Instruction, P.O. Box 17551, Al-Ain, Abu Dhabi, United Arab Emirates; Phone: 00971501383270; URL:http://faculty.uaeu.ac.ae/I_Zembat

Zevenbergen, Robyn, R.Zevenbergen@eda.gu.edu.au, Faculty of Education and the Arts; Griffith University - Gold Coast; PMB 50 Gold Coast Mail Centre; Bundall; Queensland 4217; Australia; Tel: +61 75 94 8632; Fax: +61 75 94 8634

Zhou, Lili, zhou756@purdue.edu , Mathematics education in secondary school, 210airport Rd, Apt6, West Lafayette, IN, 47906, USA, China, +1-7657750562,

Zhouf, Jaroslav, jaroslav.zhouf@pedf.cuni.cz, Department of Mathematics and Mathematical Eduction, Faculty of Education, Charles University in Prague, M.D. Rettigove 4, 116 39 Praha 1, Czech Republic, (+420) 221900250, Fax: (+420) 221900248 http://kmdm.pedf.cuni.cz

Zilinskiene, Inga, inga.zilinskiene@mruni.eu, Faculty of Economics and Finance Management, Mykolas Romeris University, LT-08303, Vilnius, Lithuania, tel. (+370) 5 271 4731.

Zilliox, Joseph, zilliox@hawaii.edu, University of Hawaii; 1776 University Ave; WA2-226; Honolulu HI 96822; USA; Tel: (808) 965-5358; Fax: (808) 965 3918

Zimmerman, John, Department of Mathematics, Washington & Jefferson College, 60 S. Lincoln St. Washington, PA 15301, USA, Tel: 724-250-3322, FAX: 724-223-5271

Zollman, Alan, zollman@math.niu.edu , Department of Mathematical Sciences; Northern Illinois University; DeKalb; Illinois 60115; USA; Tel 815 753-6750; Fax 815 753-1112.

Ben-Zvi, Dani, ntdben@wiccmail.weizmann.ac.il, Weizmann Institute of Science; Science Teaching Department; P. O. Box 26; Rehovot; 76100; Israel; Tel 972 8 9342 816; Fax 972 8 9344 174.

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