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Download full textMagajna, Zlatan – Center for Educational Policy Studies Journal, 2013
Proving in school geometry is not just about validating the truth of a claim. In the school setting, the main function of the proof is to convince someone that a claim is true by providing an explanation. Students consider proving to be difficult; in fact, they find the very concept of proof demanding. Proving a claim in planar geometry involves…
Descriptors: Secondary School Students, Secondary School Mathematics, Plane Geometry, Mathematical Logic
Chazan, Daniel – 1988
Previous work has identified four areas of difficulty that students seem to have with the topic of similarity: (1) understanding the definition of similarity; (2) proportional reasoning; (3) dimensional growth relationships; and (4) correspondences in right triangle similarity. This paper reports the results of an investigation into high school…
Descriptors: Computer Assisted Instruction, Computer Oriented Programs, Geometric Concepts, Geometric Constructions
