Piaget found four major developmental stages (with many subdivisions). For the first year and a half or two years of life, infants are only aware of sensorimotor experience, and do not connect it ...

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 ...

Piaget's theory is mainly known as a developmental stage theory. In 1919, while working at the Alfred Binet Laboratory School in Paris, Piaget "was intrigued by the fact that children of different ...

This conviction led Piaget to develop his influential theory of cognitive development. He proposed that children pass through four main stages: the sensorimotor stage, the preoperational stage ...

Jean Piaget (1896–1980) was listed among the 100 most important persons in the twentieth century by Time magazine, and his work – with its distinctive account of human development – has had a ...

The Swiss psychologist Jean Piaget is generally considered to be the founder of modern developmental psychology. This book provides a conceptual critique of six of Piaget's central, earlier works, ...