This period is known as the concrete operational stage, which is the third stage in Piaget's theory of cognitive ... reversibility, and conservation. Children also become less egocentric during ...

This is the second stage in his theory of cognitive development ... the cup that appears fuller. Piaget conducted several ...

We spoke to lecturer in psychology and language researcher Dr Sam Durrant from LuCiD to help you make sense of cognitive development, the ideas that surround it, like Piaget's Theory, and some ...