Language and Operational Thought

This is the second volume in a series that records the official Symposium Pro­ ceedings of the Jean Piaget Society. Like the first volume, this work includes theoretical, empirical, and applied aspects of Jean Piaget' s seminal epistemology. The focus of this publication is the intricate interplay of language development and the development of operational thought. All the papers in this volume were presented at the third and fourth annual symposia of the Society. The authors are a formidable gro