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Research in Mathematics Education; Piaget's Genetic Epistemology for Mathematics Education Research ,
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Reflected Abstraction:
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Piaget's Genetic Epistemology for Mathematics Education Research; Research in Mathematics Education ,
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The Construct of Decentering in Research on Mathematics Lea..:
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Forty-first annual report of the National Advisory Committe..
United States congressional serial set ; serial set no. 11917;Senate document / 84th Congress, 2nd session. Senate ; no. 90