Piaget, in describing the sequence of classificatory development, describes class inclusion as composed of two processes; hierarchical classification and post-whole comparisons. In the experiment reported here, elementary school children, trained in the concept of sets in first grade mathematics were given a task where they were required to assess…

The Language Acquisition Device, or LAD, is related to reading and intellectual development in the first of five papers on cognitive and affective characteristics of exceptional children. A discussion of the intellectual processes involved in learning focuses on the developmental stages of Piaget. A report on a task force to discuss terminology…

This document provides a classification of educational objectives in the cognitive and affective domains, defines each objective, and offers examples. Special emphasis is not given to any particular objective; it is left to the teachers in a given program to determine the specific objectives to be derived in each learning experience within the…

This volume is an attempt to provide literature that will enhance through vicarious experience and emotional involvement the adult's understanding of the principles of child development. The selections are organized into categories and cross-indexed with most of the standard texts in child development and psychology. It is divided into ten major…