Smith,, Margaret Schwan Improving instruction in rational numbers and proportionality / Margaret Schwan Smith, Edward A. Silver, Mary Kay Stein ; with Melissa Boston, Marjorie A. Henningsen, and Amy F. Hillen

Improving instruction in rational numbers and proportionality / Margaret Schwan Smith, Edward A. Silver, Mary Kay Stein ; with Melissa Boston, Marjorie A. Henningsen, and Amy F. Hillen . - New York : Teachers College Press, cop. 2005 . - XV, 140 p. : il. 28 cm . - (Using cases to transform mathematics teaching and learning; 1)
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