1. Piaget’s Theory of Intellectual Development

2. Sensorimotor Ages: Birth – 1½ years
Description: Children learn through their senses and their own actions.
Object Permanence: an object still exists even if you can’t see it.
Learning to control body
Egocentric thinking

3. Preoperational Ages: 2-7 years
Description: Children view the world based only on their own experiences and how things appear to and affect them.
Seriation – Being able to put things in order
Representational Thought: understanding that symbols have meaning.

4. Concrete Operations Ages: 7-11 years
Description: Children can think logically, but still make decisions based on their own experience.
More socialized thinking, less egocentric
Conservation: the amount of something stays the same even if the shape changes.

5. Formal Operations Ages: 11-death
Description: People can understand facts outside of their experience. Understand deeper meanings and problem solving without actually experiencing the problem.
Abstract thinking (intangible)
Hypothetical thinking (supposed, theoretical)