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One of the major accomplishments of concrete operational stage is

  • A.Animistic thinking
  • B.Ability to conserve
  • C.Hypothetic - deductive reasoning
  • D.Secondary circular reactions

Answer: B

A major accomplishment of the concrete operational stage is the ability to conserve.

In Piaget's concrete operational stage (about 7 to 11 years), children understand that quantity, number, mass and volume stay the same when only the appearance changes, for example that water poured into a taller, thinner glass is still the same amount. This rests on reversibility and decentration, which pre-operational children lack.

Animistic thinking (treating objects as alive) belongs to the pre-operational stage. Hypothetico-deductive reasoning appears only in the formal operational stage. Secondary circular reactions are a sub-stage of the sensorimotor period in infancy.

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