Authors
Koen Luwel
Centre for Educational Research and Development, Hogeschool-Universiteit Brussel and Centre for Instructional Psychology and Technology, KU Leuven
Lieven Verschaffel
Centre for Instructional Psychology and Technology, KU Leuven

© 2012 Viki Schillemans, Koen Luwel, Eva Ceulemans, Patrick Onghena, Lieven Verschaffel, published by Ubiquity Press
This work is licensed under the Creative Commons Attribution 4.0 License.