Jean Piaget's ideas about child development ... This conviction led Piaget to develop his influential theory of cognitive development. He proposed that children pass through four main stages ...

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 ...

They're always learning and growing and it's easy to ... the ideas that surround it, like Piaget's Theory, and some experiments you can try at home to see how your little one's thought processes ...