By assigning negative value to egocentric language, Jean Piaget equates depersonalized thought and logic with maturity, and gives disproportionate favor to socialized language. By focusing on the deterministic ends to be gained through the acquisition of socialized language, Piaget misses the value of egocentric language. Maurice Merleau-Ponty,…

Studies in the role of play in child development are classified in terms of their major correlates or dependent variables: (1) creativity, (2) problem solving, (3) language development, (4) logical skills, and (5) social knowledge. Study designs are critically examined, and internal and external validity problems are noted. (Author/PN)

The educational implications of Piaget's concept of intelligence provide a framework for the application of theory to educational practice. The uniqueness of individual learning is compared to stage-based teaching. Social interaction is viewed as one of the major forces in cognitive development. (JN)