All educational thinking springs from three ancient theories: education should provide skills to succeed in society; education should stimulate the search for truth through academic excellence; and education should give students opportunities to develop their potential. But these ideas are incompatible, and mixing them together has created a…

In this article, Kieran Egan contests the scientific foundations of Piaget's developmental theories and the scientific basis of much educational research. In so doing, he pushes researchers and practitioners alike to rethink the centrality of Piaget's tenets to teaching and learning. Egan traces the history of the developmental literature that…