Questions the efficiency, economy, and learning benefits of formal instructional programs at the preschool level, particularly for middle class children. Concludes that academic preschool for this group is undesirable. (DR)

Authors explore some newly developed concepts about learning and discuss the influence of these concepts on current investigations of cognitive development in children. (HS)

Describes research on Piaget's theories on the importance of exploration, use of concrete objects, and self-directed learning for children. Relates the concepts of construction and instruction to educational models and teaching roles. (DR)