Mathematics, 10.03.2020 00:23, kaleaweeks

Peyton is 11 years old and knows 10-7=3 and 3+7=10 but finds it difficult to solve a math problem, such as 3x-5, because she cannot understand why there is a letter in the problem. Piaget would most likely place her in the

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Peyton is 11 years old and knows 10-7=3 and 3+7=10 but finds it difficult to solve a math problem, s...