Jean Piaget was one of the most salient and inspirational figures in psychological and educational research of the 20th century. He was also prolific, authoring or editing over 80 books and numerous journals and papers which spawned a continuation of his work over the following decades. His work now compromises a major component of many courses on children's psychological development and in a research tradition which is expanding, scholars may need access to the original texts rather than secondhand accounts. This volume is the third of nine reproducing Piaget's original works - they are also available as a boxed set.

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 development. To explain a psychologic reaction or a cognitive mechanism (at all levels, including that of scientific thought) is not simply to describe them, but to comprehend the processes by which they were formed; failing that, one can but note results without grasping their meaning. JEAN PlACET VI Man distinguishes himself from other creatures primarily by his abstract reasoning capacity and his ability to communicate his knowledge by highly complex symbolic processes. What is called "humanity" and progress is to a large degree a measure of his consciousness and the deployment of his creative potentials. There are few scientists who have explored the universe of cogni tion, and contributed to the understanding of the realm of knowledge, with greater genius, care, and scientific intuition than Jean Piaget and his longtime collaborator Barbel Inhelder. Professor Inhelder and her assistant Dr. Harold Chipman realized this book in spite of the heavy load of research, teaching, and administra tive duties in a rapidly expanding Institute. It is therefore a particular pleasure for me to presen t this book.

Cognition and emotions in children.

Interprets Piaget's theories and provides a concise introduction to Piaget's basic ideas and findings concerning children's intellectual development.