AP PSYCHOLOGY

Detailed explanation-1: -Piaget proposed four major stages of cognitive development, and called them (1) sensorimotor intelligence, (2) preoperational thinking, (3) concrete operational thinking, and (4) formal operational thinking. Each stage is correlated with an age period of childhood, but only approximately.

Detailed explanation-2: -Piaget describes four different stages of development: sensorimotor, preoperational, concrete operation, and formal operations. Each stage describes the thinking patterns of a child depending on his or her age.