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Cognitive Development In Children.

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Cognitive Development In Children. This investigation will examine children's cognitive development. Piaget's theory of cognitive development shows four stages. He described them as "Universal" - everyone goes through them, and "Invariant"- The order in which people go through them does not vary. Piaget's four stages include; The Sensori -motor stage, which Piaget said occurred between birth and two years. At this stage the child's understanding is based on sensory impressions and motor activities. ...read more.


During this stage children are able to solve "hands on" problems logically, but understanding of conservation is apparent. The Formal-operational stage occurs between 11 and 15 years. Children develop social issues and identity and thinking is more scientific. (Cardwell 1996) Piaget constructed ways of assessing children's thinking, which left a detailed and comprehensive account of cognitive development. One of his most famous ways was to present children with conservation tasks. ...read more.


Pre-operational children may fail on conservation tasks because they centre on the row of counters but do not allow for the increased space between the counters. However, some may fail to notice that the increased length can be reversed, by pushing the counters together. There have been criticisms of Piaget's studies. Critics state that his methods caused him to "seriously underestimate children's competence" and his theory is "oversimplistic" and "ignores social and simplistic influences" Influential studies by McGarrigle and Donaldson (1974) challenge Piaget's views about Pre-operational deficiencies. They tested pre-school children in number conservation tasks similar to Piaget's, except ...read more.

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