According to Piaget at which of the following stages does a child begin to think logically about abstract propositions?

Question:According to Piaget at which of the following stages does a child begin to think logically about abstract propositions?

1.Concrete operational stage (07 - 11 years)

2.Formal operational stage (11 years and up)

3.Sensori-motor stage (Birth - 02 years)

4.Pre-operational stage (02 - 07 years)


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