Name this psychologist who included concrete operational and sensorimotor as two of the four stages in his model of the cognitive development of children.
This psychologist worked closely with programming language designer Seymour Papert, whose namesake principle attempts to explain some of this person's results. He argued for reflective abstraction rather than pre-existing linguistic structures in a debate with Noam Chomsky. This founder of the International Centre of Genetic Epistemology performed experiments demonstrating that some people lack the understanding of conservation of number. One of his experiments involved pouring water from a tall thin cup to a short fat cup, and he also studied the learning of object permanence. Name this psychologist who included concrete operational and sensorimotor as two of the four stages in his model of the cognitive development of children.
This psychologist worked closely with programming language designer Seymour Papert, whose namesake principle attempts to explain some of this person's results.
Jean Piaget [zhahn pee-a-zhay]