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Jean Piaget was a Swiss psychologist and genetic epistemologist. You may have heard of Jean Piaget's theory of cognitive development, for which he is famous. This theory looks at how children develop intellectually throughout the course of childhood. Prior to Piaget's theory, children were often thought of simply as mini-adults. Piaget's theory had a tremendous influence on the emergence of developmental psychology as a distinctive subfield within psychology and contributed greatly to the field of education. He is also credited as a pioneer of the constructivist theory, which suggests that people actively construct their knowledge of the world based on the interaction between their ideas and experiences. In a 2002 survey of 1,725 American Psychological Society members, Piaget was named the second most influential psychologist of the 20th century.

(Available on: https://www.verywellmind.com/jean-piaget-biography-1896-1980-2795549.)

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