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The first one is a test if a child has understood conservation of matter. It is an example of a conservation task. These belong to the tests used in the framework of Piaget to test what stage of development a child is in. Here is a video demonstration of the cookie task. Here is another question on this site pertaining to a different conservation task. The ...


For a real answer on this topic, you need two things: one is to understand your question, and the other is an understanding of Jean Piaget's masses of research into the development of intelligence (from birth to adulthood). Regarding understanding your own question, you must appreciate that decades of philosophy and psychology reveal that you cannot separate ...

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