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Relation objects and different representative registers: cognitive difficulties and obstacles. (Objetos relacionales y registros representativos distintos: dificultades cognitivas y obstaćulos.) (Spanish)
Uno 4, No. 15, 63-76 (1998).
In this paper we consider the results of a research about the identification, from students of different school levels, of different significants of the same meaning, when this one is a binary relation and the significants are obtained by using different representative registers. (orig.)
Classification: E60
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