Making sense of fractions, ratios, and proportions : 2002 yearbook / ed. Bonnie Litwiller, George W. Bright

Making sense of fractions, ratios, and proportions : 2002 yearbook / ed. Bonnie Litwiller, George W. Bright . - Reston : National Council of Teachers of Mathematics, cop. 2002 . - X, 261 p. : il. 24 cm
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