1. JEAN PIAGET CHILD PSYCHOLOGIST HE FOUND ANSWERS TO HUMAN BEHAVIOR BY STUDYING CHILDREN INFLUENTIAL IN SCHOOL REFORM

2. HIS VIEW OF CHILDREN CHILDREN ARE NOT “BLANK SLATES” OR “EMPTY VESSELS” CHILDREN INVENT THEIR OWN LOGIC OBSERVATION OF CHILDREN’S MINDS

3. LESSONS PIAGET LEARNED FROM CHILDREN CHILDREN TAKING IQ TESTS MADE SIMILAR ERRORS KNOWLEDGE IS DISCOVERED BY OBSERVING A CHILD’S MIND KNOWLEDGE BUILDS AS KIDS GROW

4. AN EXPERIMENT THE PRINCIPLE OF CONSERVATION (AGES 5–7) CHILDREN UNDER AGE 5 ARE EGOCENTRIC BY AGE 7 OBJECT PERMANENCE IS RECOGNIZED

5. STAGE 1: SENSORIMOTOR SIMPLE MOTOR RESPONSES TO SENSORY STIMULI; NO CONCEPTION OF OBJECT PERMANENCE USE OF SCHEMAS

6. STAGE 2: PREOPERATIONAL AGES 1 ½–7 EXHIBITS EGOCENTRIC THINKING LACKS CONCEPT OF CONSERVA- TION USES SYMBOLS, WORDS, MENTAL IMAGES

7. STAGE 3: CONCRETE OPERATIONS AGES 7–11 BEGINS TO UNDERSTAND THE CONCEPT OF CONSERVATION STILL HAS SOME TROUBLE WITH ABSTRACT IDEAS CLASSIFICATION

8. STAGE 4: FORMAL OPERATIONS AGES 11 – ADULT UNDERSTANDS ABSTRACT IDEAS AND HYPOTHETICAL SITUATIONS CAPABLE OF LOGICAL THINKING NERVOUS SYSTEM