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Direct linkKidron, Ivy; Dreyfus, Tommy – Educational Studies in Mathematics, 2014
The emergence of a proof image is often an important stage in a learner's construction of a proof. In this paper, we introduce, characterize, and exemplify the notion of proof image. We also investigate how proof images emerge. Our approach starts from the learner's efforts to construct a justification without (or before) attempting any…
Descriptors: Mathematics Instruction, Mathematical Logic, Validity, Persuasive Discourse
