1. Piaget’s 4 stages of cognitive development
Cognitive development = changes over time in how a person thinks
Piaget outlined 4 stages of cognitive development:
Sensorimotor stage (from birth to age 2)
Preoperational stage (age 2 to 7)
Concrete operational stage (age 7 to 11)
Formal operational stage (age 12 to adolescence)

2. Piaget’s 4 stages of cognitive development
#1 Sensorimotor stage (from birth to age 2)
During this period, children understand the world only through sensory contact and immediate action because they cannot engage in symbolic though or use language

3. Piaget’s 4 stages of cognitive development
#2 Preoperational stage (age 2 to 7)
In this stage, children begin to use words as mental symbols and to form mental images.
They are still limited in their ability to use logic to solve problems or to realize that physical objects may change in shape or appearance while still retaining their physical properties.

4. Piaget’s 4 stages of cognitive development
#3 Concrete operational stage (age 7 to 11)
During this stage, children think in terms of tangible objects and actual events.
They can draw conclusions about the likely physical consequences of an action without always having to try it out.

5. Piaget’s 4 stages of cognitive development
#4 Formal operational stage (age 12 to adolescence)
Adolescents are able to engage in highly abstract thought and understand places, things, and events they have never seen.
They can think about the future and evaluate different options or courses of action.