Dental General 240aaafe

According to piagets, the period of pre operational stage is:

Birth to 18 months

12 years onwards.

2-6 years.

7-12 years.

High-Yield Explanation

According to Piaget Cognitive theory, the sequence of development has been categorized into 4 major stages: Sensorimotor stage (0 to 2 yrs) Pre-operational stage (2 to 6 yrs) Concrete operation stage (7 to 12 yrs) Formal operation stage (11 to 15 yrs)

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