1. The Science and Technology Education Program, Bar-Ilan University, Ramat-Gan, Israel
2. Department of Mathematics Education; Range (Research and Advancement of Giftedness and Excellence) Center Neuro-cognitive Laboratory for the Investigation of Creativity, Ability and Giftedness, University of Haifa, Haifa, Israel
3. Departments of Special Education and Learning Disabilities; Faculty of Education, University of Haifa, Haifa, Israel