Editor

Lyn D. English
Queensland University of Technology, Australia

Associate Editors

Richard Lesh - Indiana University—Bloomington, United States
Luis Moreno-Armella - Matemática Educativa, CINVESTAV, Mexico
Bharath Sriraman - The University of Montana, United States

Book Review Editor

Michael N. Fried  - Ben-Gurion University of the Negev, Israel

Editorial Board

Patricia Alexander  - University of Maryland, College Park, United States
Miriam Amit - Ben-Gurion University of the Negev, Israel
Douglas Clements - University at Buffalo, SUNY, United States
Paul Cobb - Vanderbilt University, United States
Willibald Döerfler - Universität Klagenfurt, Austria
Helen Doerr - Syracuse University, United States
Laurie D. Edwards - Saint Mary's College, United States
Fulvia Furinghetti - Universita di Genova, Italy
Gerald Goldin - Rutgers University, United States
Simon Goodchild  - University of Agder, Norway
Koeno Gravemeijer - Utrecht University, The Netherlands
Stephen J. Hegedus - University of Massachusetts Dartmouth, United States
James Hiebert - University of Delaware, United States
Carolyn Kieran - Université du Quebec à Montréal, Canada
David Kirshner  - Louisiana State University, United States
Karen Koellner, PhD - University of Colorado, Denver  
Gilah Leder - La Trobe University, Australia
Frank Lester - Indiana University, United States
Shukkwan Leung - National Sun Yat-sen University, Taiwan
Peter Liljedahl - Simon Fraser University, Canada
Joanne Lobato - San Diego University, United States
Joanna Mamona-Downs  - University of Patras, Greece
Luis Moreno-Armella - Cinvestav, México
John Mason - Open University, United Kingdom
Joao Matos - Universidade de Lisboa, Portugal
Alexander Poddiakov - Moscow State University, Russia
Luis Radford - Université Laurentienne, Canada
Melissa Rod - University of London, United Kingdom
Wolff-Michael Roth  - University of Victoria, Canada
Manuel Santos-Trigo - Center for Research and Advanced Studies, México
Alan Schoenfeld - University of California, Berkeley, United States
Falk Seeger - Universitaet Bielefeld  
Nathalie Sinclair - Simon Fraser University, Canada
Finbarr Sloane - Arizona State University, United States
Bettina Dahl Soendergaard - University of Aarhus, Denmark
Dina Tirosh - Tel Aviv University, Israel
Pongchawee Vaiyavutjamai - Chiang Mai University  
Lieven Verschaffel - University of Leuven, Belgium
Dirk Wessels - The University of South Africa, South Africa

Editorial Assistant

Jo Macri - Queensland University of Technology, Australia