AP PSYCHOLOGY

Detailed explanation-1: -Jean Piaget was a Swiss psychologist who contributed greatly to the understanding of children’s cognitive development (Papalia & Feldman, 2011; Waite-Stupiansky, 2017). He was born in 1896 and originally trained as a biologist and philosopher.

Detailed explanation-2: -The theory deals with the nature of knowledge itself and how humans gradually come to acquire, construct, and use it. Piaget’s theory is mainly known as a developmental stage theory.

Detailed explanation-3: -Sensorimotor stage: Birth to 2 years. Preoperational stage: Ages 2 to 7. Concrete operational stage: Ages 7 to 11. Formal operational stage: Ages 12 and up.

Detailed explanation-4: -Today, Jean Piaget is best known for his research on children’s cognitive development. Piaget studied the intellectual development of his own three children and created a theory that described the stages that children pass through in the development of intelligence and formal thought processes.