Developmental, Sociocultural, Semiotic, and Affect Approaches to the Study of Concepts and Conceptual Development.
SourceSecond Handbook of Research on the Psychology of Mathematics Education
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We live in a world rich and full of unique events and objects. The book you hold in your hands and read at this moment resembles another book placed on a bookshelf of your library. They both have different covers or different size or address different things, but both are “books”