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Zaslavsky, Orit; Sela, Hagit; Leron, Uri – Educational Studies in Mathematics, 2002
Presents evidence that there exists much confusion regarding the connection between the algebraic and geometric aspects of slope, scale, and angle. Participants responded to a simple but non-standard task concerning the behavior of slope under a non-homogeneous change of scale. Analysis of the responses reveals two main approaches termed…
Descriptors: Algebra, Cognitive Processes, Cognitive Restructuring, Concept Formation