Adding + it up : helping children learn mathematics / ed. Jeremy Kilpatrick, Jane Swafford, Bradford Fildell

Adding + it up : helping children learn mathematics / ed. Jeremy Kilpatrick, Jane Swafford, Bradford Fildell . - Washington : National Academy Press, 2001 . - XVII, 454 p. : il. 26 cm
0-309-06995-5 Encadernado

51:372.851
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