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

It was originated by the Swiss developmental psychologist Jean Piaget (1896–1980 ... Alfred Binet Laboratory were the beginnings of his theory of cognitive development. Piaget believed that children ...

children enter the preoperational stage at around two years old Despite being over 70 years old, Piaget's theory is "still one of the prevailing theories in terms of cognitive development," Dr Sam ...

Psychologist Lawrence Kohlberg had the same questions, leading him to develop a theory of moral development that focuses on how children develop morality and ethical reasoning. This theory suggests ...