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Cognitive Development in Childhood: Piaget's Conservation-of-Liquid Task: 7 1/2-Year-Old Passes
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      Question 1

      According to Piaget’s theory, children in the blank stage of cognitive development will have the greatest struggle with a conservation task.

      Question 2

      Martavis is 6 years of age, and is sitting at a table with a large ball of clay. He rolls the clay out into a long thin “snake” and feels very proud of himself. Then his older sister comes along and presses the snake back into the original clay ball when Martavis is not looking. Which reaction is Martavis likely to have during this sequence?

      Question 3

      Because the young man in the video knows that the glasses have the same amount of juice regardless of their relative heights, Piaget would probably assume that he is at least blank years of age.