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Human Development1
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Piaget, J.1
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Piaget, J. – Human Development, 1972
Growing out of a child's cognitive developmental history, formal operation becomes established at about the age of 12-15 years. The essence of the logic of cultured adults and the basis for elementary scientific thought are thereby provided. The rate at which a child progresses through the developmental succession may vary, especially from one…
Descriptors: Adolescents, Cognitive Development, Individual Development, Intellectual Development