This follow-up to a previous article (Orbit 14, pp. 8-11), describes and analyses some present educational applications from Piaget's theories (revised curricula, new assessment procedures, the readiness and self-discovery approach) and some possible future influence in teaching methodology. (JA)

This article traces Piaget's theory of child development from its philosophic foundations in Kantian organization and then describes in sequence Piaget's four stages. (A follow-up article on Piaget and educational practice will appear in a later issue.) (JA)