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Direct linkGal, Hagar; Lin, Fou-Lai; Ying, Jia-Ming – International Journal of Science and Mathematics Education, 2009
This study uses classroom videotapes to examine the phenomenon of students who are left behind during whole-class teaching. Zooming in via these videos enabled us to analyze these classroom situations by means of a compact, multi-perspective set of theories--van Hiele theory, conceptualization, and visual perception. The analysis provided a…
Descriptors: Visual Perception, Interaction, Geometry, Foreign Countries
