If Annette has studied piaget’s theory of cognitive development. The preoperational to the concrete operational period of development is: Children in these two stages are often qualitatively different from one another.'
Concrete-operational stage can be defined as the stage of development in which children begins to develop logical and abstract reasoning .
Children that in the stage of preoperational stage and concrete operational stage can tend to have different qualitative ability based on the fact the two stages are not the same. The children have to pass through preoperational before concrete operational stage.
Therefore we can conclude that children at this stage have different cognitive ability.
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