Piaget has stated that the child's active manipulation of objects is a necessary part of teaching for intellectual development. But this appears to be contrary to empirical evidence. From a review of literature, it is concluded that Piaget's insistence on physical activity, and his dismissal of observation, are excessive. (Editor)

Contains 15 articles investigating and discussing issues generated by Piaget's theory of cognitive development. Discusses and examines questions related to object permanence, transitivity, conservation and the concept of necessity as these relate to children. Deals with the origins and causes of development, logical development, social and…

Discussed are Piaget's methods, his relation to other theories, and an overview of his theory. Described are the six stages of his sensorimotor period with a summary of imitation and play, and the concrete operations period with the subperiods of changes from sensorimotor in preoperation, differences from the adult in preoperation, and the…