Editor

Huseyin Bag, Pamukkale University, Turkey

Associate Editor 

Pavol Prokop, Trnava University, Slovakia

Book Review Editor 

Muammer Çalık, Karadeniz Technical University, Turkey

Editorial Board 

Leonard Annetta, North Caroline State University, USA

Tuula Asunta, University of Jyväskylä, Finland

Mary M. Atwater, University of Georgia, USA

Mehmet Bahar, Abant Izzet Baysal University, Turkey

Moshe Barak, Ben-Gurion University of the Negev, Israel

Amauri Bartoszeck, University of Parana, Brazil

Ugo Besson, University of Pavia, Italy

William Boone, Miami University, USA

Saouma Boujaoude, American University of Beirut, Lebanon 

Malcolm B. Butler, University of South Florida, USA

Derek Cheung, The Chinese University of Hong Kong, Hong Kong

Christine Chin, Nanyang Technological University, Singapore 

Richard K. Coll, University of Waikato, New Zealand

David T. Crowhter, University of Nevada - Reno, USA

Salih Çepni, Karadeniz Technical University, Turkey

Hasan Deniz, University of Nevada - Las Vegas, USA   

Iztok Devetak, University of Ljubljana, Slovenia

Lisa A. Donnelly, Kent State University, USA

Billie Eilam, University of Haifa, Israel

Ingo Eilks, University of Bremen, Germany 

Margareta Ekborg, Malmö University, Sweden

Jo-Anne Ferreira, Griffith University, Australia

Kathleen M. Fisher, Center for Research in Mathematics and Science Education, USA

Suzanne Gatt, University of Malta, Malta

Nelofer Halai, The Aga Khan University, Pakistan

JaeYoung Han, Chungbuk National University, South Korea

Peter Hudson, Quesland University of Technology, Australia 

SungWon Hwang, Seoul National University, South Korea

Eila Jeronen, University of Oulo, Finland

Sukjin Kang, Jeonju National University of Education, South Korea

Dimitris Koliopoulos, University of Patras, Greece

Vincentas Lamanauskas, Siauliai University, Lithuania  

Brian Lewthwaite, University of Manitoba, Canada  

Xiufeng Liu, State University of New York at Buffalo, USA        

Armin Lude, Universität Kassel, Germany

Cheryl L. Mason, San Diego State University, USA

Joel J. Mintzes, California State University, USA

Frackson Mumba, Southern Illinois University Carbondale, USA

Meshach Ogunniyi, University of Western Cape, South Africa

Gokhan Ozdemir, Nigde University, Turkey

Paul Pace, University of Malta, Malta

Seoung-Hey Paik, Korea National University of Education, South Korea

George Papageorgiou, Democritus University of Thrace, Greece

Hyoungseo Park, Pusan National University, South Korea

Peter Van Petegem, University of Antwerp, Belgium  

Oleg Popov, Umea University, Sweden

Christoph Randler, Universität Leipzig, Germany

Ian Robottom, Deakin University, Australia

Alan Smith, University of Southern Queensland, Australia

Kari Sormunen, University of Joensuu, Finland

Kola Soyibo, The University West Indies at Mona, Jamaica

Ozgur Taskin, Ondokuz Mayıs University, Turkey

Neil Taylor, University of New England, Australia 

William W. Toili, Masinde Muliro University of Science and Technology, Kenya

Ayelet Baram-Tsabari, Israel Institute of Technology, Israel

Sue Dale Tunnicliffe, Institute of Education, University of London, UK

Hakan Türkmen, Ege University, Turkey

Nicos Valanides, University of Cyprus, S. Cyprus

Paul Webb, Nelson Mandela Metropolitan University, South Africa

Hsin-Kai Wu, National Taiwan Normal University, Taiwan

BaoHui Zhang, Nanyang Technological University, Singapore