Cognitive Development

Cognitive Development: The Child's Acquisition of Diagonality is an empirical and rational enquiry into the child's development of a conceptual system relating to the concept of the diagonal during the age range three to six years. A detailed examination will be made of why a young child has difficulty with such a problem, and what occurs during development that removes this difficulty. In the context of these empirical arguments, the book considers such theoretical questions as the nature of in