How many stages of development are described by Jean Piaget of cognitive:

How many stages of development are described by Jean Piaget of cognitive: (a) 3 (b) 4 (c) 5 (d) 6 ✅ Correct Option: (b) 4 Explanation: Jean Piaget described four stages of cognitive development: 1. Sensorimotor stage (0–2 years): Knowledge through sensory experiences and motor actions. 2. Preoperational stage (2–7 years): Symbolic thinking develops; egocentrism is common. 3. Concrete operational stage (7–12 years): Logical thinking about concrete objects; conservation concepts develop. 4. Formal operational stage (12 years and above): Abstract thinking, hypothesis testing, and systematic reasoning appear. Piaget’s model emphasizes that children progress through these stages in a fixed sequence, with each stage building upon the previous one. These stages guide teachers in selecting developmentally appropriate activities and assessments. 10 PPSC-Relevant Facts: 1. Piaget = cognitive development pioneer 2. Four stages: Sensorimotor, Preoperational, Concrete, Formal 3. Children progress sequentially 4. Stage 1: 0–2 years, sensory learning 5. Stage 2: 2–7 years, symbolic thought 6. Stage 3: 7–12 years, concrete logic 7. Stage 4: 12+, abstract reasoning 8. Egocentrism reduces in concrete stage 9. Conservation understood in concrete stage 10. Highly frequent PPSC psychology question