Children's play is a universal human activity, and one that serves a significant purpose in personal development.Throughout this volume, which is an extension o

"What is most impressive about this book is its intelligence, its sophistication, and its charm. . . . This book presents Piaget's work and his person better th

First published in 1999. This volume is the third of a series devoted to the first years of the child’s development, the two others being concerned with the b

Inhelder in her introduction. The reason for this unity is that explanatory adequacy can be attained only by exploring the formative and constructive aspects of