Piaget, Jean

Jean Piaget was a Swiss psychologist best known for his work in developmental psychology. He proposed that children learn and think differently than adults, developing in stages as they grow. Piaget identified four key stages of cognitive development: sensorimotor (birth-2 years), preoperational (2-7 years), concrete operational (7-11 years), and formal operational (12 years and up). Each stage represents a new way of understanding the world, emphasizing that learning is an active, constructive process. His theories have significantly influenced education and our understanding of how children perceive and interact with their surroundings.