Table : TABLE 11.1
Piaget’s Stages of Cognitive Development
Typical Age RangeDescription of StageDevelopmental Phenomena
Birth to nearly 2 years

Sensorimotor

Experiencing the world through senses and actions (looking, hearing, touching, mouthing, and grasping)

  • Object permanence

  • Stranger anxiety

About 2 to about 6 or 7 years

Preoperational

Representing things with words and images; using intuitive rather than logical reasoning

  • Pretend play

  • Egocentrism

About 7 to 11 years

Concrete operational

Thinking logically about concrete events; grasping concrete analogies and performing arithmetical operations

  • Conservation

  • Mathematical transformations

About 12 through adulthood

Formal operational

Abstract reasoning

  • Abstract logic

  • Potential for mature moral reasoning