Introduction
As it is well known, most of pupils and students meet strong difficulties with reasoning in mathematics, whatever the mathematical field studied. This question is well explored in the field of cognitive psychology (Richard, 1990), and also by didacticians ( Radford 1985, El Faqih 1991, Duval 1995).
IntroductionAs it is well known, most of pupils and students meet strong difficulties with reasoning in mathematics, whatever the mathematical field studied. This question is well explored in the field of cognitive psychology (Richard, 1990), and also by didacticians ( Radford 1985, El Faqih 1991, Duval 1995).
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