The authors report the results of some half dozen years of research into when and how children acquire numerical skills. They provide a new set of answers to these questions, and overturn much of the traditional wisdom on the subject.
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语言 英语 ● 格式 PDF ● ISBN 9780674037533 ● 出版者 Harvard University Press ● 发布时间 2009 ● 下载 6 时 ● 货币 EUR ● ID 2339239 ● 复制保护 Adobe DRM
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