Janet Caldwell
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bibliografia
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Putting Essential Understanding Of Addition And Subtraction Into Practice, Pre-K-2National Council of Teachers of Mathematics,U.S.12-20140,00€
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Developing Essential Understanding - Multiplication And Division For Teaching Math In Grades 3-5National Council of Teachers of Mathematics,U.S.04-20110,00€
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Developing Essential Understanding Of Addition And Subtraction For Teaching Math In Prek-Grade 2National Council of Teachers of Mathematics,U.S.01-20110,00€