Piaget's theory of knowledge: the nature of representation and interiorization.
D001244:Association; D002657:Child Development; D003071:Cognition; D003210:Concept Formation; D005120:Extraversion, Psychological; D049672:History, 19th Century; D049673:History, 20th Century; D006801:Humans; D007439:Introversion, Psychological; D007600:Judgment; D008960:Models, Psychological; D010465:Perception; D010684:Philosophy; D011584:Psychology / Q000266:history; D012660:Semantics; D013561:Symbolism