Arrange the stages of Piaget's theory of cognitive development in ascending order.

1.Concrete operational stage

2.Pre-operational stage

3.Sensorimotor stage

4.Formal operational stage

A2, 3, 4, 1

B3, 2, 1, 4 ✓ Correct

C1, 2, 3, 4

D4, 3, 1, 2

Correct answer: (B) 3, 2, 1, 4

Explanation

Piaget's stages in ascending order are sensorimotor, pre-operational, concrete operational and formal operational, giving the sequence 3, 2, 1, 4.

The sensorimotor stage (birth to about 2 years) develops object permanence through senses and movement.

The pre-operational stage (about 2 to 7 years) brings symbolic thought but with egocentrism and no conservation.

The concrete operational stage (about 7 to 11 years) allows logical thinking about concrete objects and conservation.

The formal operational stage (about 11 years onward) enables abstract and hypothetical reasoning.

Piaget saw development advancing through assimilation and accommodation toward equilibration.

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