Rational Number Project
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[1] Albert P. Shulte,et al. New Directions for Elementary School Mathematics. 1989 Yearbook. , 1989 .
[2] Richard Lesh,et al. ORDER AND EQUIVALENCE OF RATIONAL NUMBERS: A CLINICAL TEACHING EXPERIMENT , 1984 .
暂无分享，去创建一个
[1] Albert P. Shulte,et al. New Directions for Elementary School Mathematics. 1989 Yearbook. , 1989 .
[2] Richard Lesh,et al. ORDER AND EQUIVALENCE OF RATIONAL NUMBERS: A CLINICAL TEACHING EXPERIMENT , 1984 .