[Value of Piaget's psychogenetic concepts in mental retardation. Attempt at definition of an educative criterion for severe mental retardation by observation of the manipulation of objects].
D002657:Child Development; D002675:Child, Preschool; D003071:Cognition; D002658:Developmental Disabilities; D004495:Education of Persons with Intellectual Disabilities; D006801:Humans; D009043:Motor Activity; D011582:Psychological Theory
Intérêt des coneptions psycho-génétiques de Piaget en matière d'arriération mentale. Essai de définition d'un critère d'éducabilité de l'arriéré mental profond par l'observation de la manipulation des objets.