Swiss Psychologist Jean Pi get along witht (1896-1980) proposed the idea of the four stages of childhood cognitive breachment. These be age-related stages and refer to certain accomplishments that should be achieved, by the child, at the completion of each stage.
The first stage of cognitive development is the sensorimotor stage, which lasts from birth to around two years of age. During this stage, children learn to direct their senses (hearing, sight, touch etc.) with their motor abilities. From two to s so far years is the Pre- use equal to(p) stage. Children of this age become capable of more sophisticated thinking. The concrete operational stage lasts from slightly seven years of age to about twelve. These children put together what they have already learnt, with knowledge gained from red-hot experiences. The final stage of cognitive development identified by Piaget, is the Formal operational stage. This lasts from twelve years of age onwards. locoweed in this stage are capable of more knotty thought processes.
During the Concrete operational stage (7 to 12 years), children should develop an understanding of the principle of conservation. Conservation refers to the idea that if an object alters its fake or appearance, its volume, mass, length or area will not change.
A child with an understanding of conservation should be able to think logically and see that these qualities have not changed, even if they appear to have done so. Achievement of conservation of mass can be demonstrated with two small balls of plasticine. A child is shown the plasticine and agrees that the balls are the analogous size. One of the balls is then mash down. A pre-concrete operational child will probably fix that the squashed ball is bigger, while a child at the Concrete operational stage should acknowledge that they are still the same weight or mass. This illustrates the ability...
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