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Cirillo, Michelle; Hummer, Jenifer – ZDM: Mathematics Education, 2021
Decades of research have established that solving geometry proof problems is a challenging endeavor for many students. Consequently, researchers have called for investigations that explore which aspects of proving in geometry are difficult and why this is the case. Here, results from a set of 20 interviews with students who were taught proof in…
Descriptors: Problem Solving, Mathematics Instruction, Geometry, Validity