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_aMaking sense of fractions, ratios, and proportions _e2002 yearbook _fed. Bonnie Litwiller, George W. Bright |
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_aReston _cNational Council of Teachers of Mathematics _dcop. 2002 |
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_aX, 261 p. _cil. _d24 cm _e1 caderno (Classroom activities for making sense of fractions, ratios, and proportions. - IV, 58 p. ; 28 cm) |
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_923504 _aBright, _bGeorge W. _4340 |
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