Essay on Piaget Theory of Cognitive Development

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Piaget theory of Cognitive Development For this paper I will be exploring Piaget's theory of cognitive development. Swiss Psychologist Jean Piaget, theorized that children progress through four key stages of cognitive development that change their understanding of the world. By observing his own children, Piaget came up with four different stages of intellectual development that included: the sensorimotor stage, which starts from birth to age two; the preoperational stage, starts from age two to about age seven; the concrete operational stage, starts from age seven to eleven; and final stage, the formal operational stage, which begins in adolescence and continues into adulthood. In this paper I will only be focusing on the …show more content…
On Piaget's task for conservation of length, Piaget shows the subject two pencils equal in length and subject knows the pencils are the same length. But once one of the pencils is moved longer than the other one, the subject fails to recognize that they were the same. Piaget's task for conservation for liquid, he shows the young child two identical glasses, then he pours the same amount of water both glasses. The subject knows that the two glasses of water are equal. But if water from one glass is poured into a longer thinner glass, the subject couldn’t comprehend this glass contains the same amount of water as the original two identical glasses. Piaget's explains that children's thinking is "perception bound" in preoperational stage, so they can’t focus their attention on two aspects of the new glass, they were attentive only to one aspect which is that one glass is taller than the other two; failing to realize the taller glass had the same amount of liquid.
For the purpose of this paper, I will replicate the conservation tasks experiment to test Piaget’s theories. My test subject is a five year old girl named Truphena, she -according to Piaget-is categorized to be in the pre-operational stage of intellectual development. Therefore she wouldn’t be expected to succeed at the conservation tasks that will be presented to her. I also have another subject named Franklin who is nine year old, he
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