What Are the Piaget Stages of Development? Piaget's stages of development are part of a theory about the phases of normal intellectual development from infancy through adulthood, including thought, ...

Jean Piaget’s theory of cognitive development has been a central framework for understanding how children grow and learn. His model describes development through four sequential stages: sensorimotor, ...

Jean Piaget (1896-1980) always considered himself a natural scientist, not a psychologist. As a boy he quickly gave up play and pretend to take refuge in "work" -- exploring internal combustion ...