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First published in 1982, this work represents one of the first attempts to bring together the perspectives of a variety of different researchers investigating a specific, well defined content domain. It presents theoretical views and research findings investigating the early acquisition of addition and subtraction skills by young children.

Produktbeschreibung
First published in 1982, this work represents one of the first attempts to bring together the perspectives of a variety of different researchers investigating a specific, well defined content domain. It presents theoretical views and research findings investigating the early acquisition of addition and subtraction skills by young children.
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