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Siegler, Robert S. – Grantee Submission, 2016
In this article, I examine changes in the field of cognitive development and in my own thinking over the past 40 years. The review focuses on three periods. In the first, Piaget's theory was dominant, and my research and that of many others was aimed at understanding the many fascinating changes in children's thinking that Piaget documented, and…
Descriptors: Cognitive Development, Educational History, Educational Research, Piagetian Theory