Helping children learn mathematics /
Reys, Robet E.
Helping children learn mathematics / Robet E. Reys, Mary M. Lindquist, Diana V. Lambdin, Nancy L. Smith and Marily N. Suydam. - 7th ed. - xxiii, 471p.; illustrations.
Includes index.
0-471-15163-7
ELEMENTARY EDUCATION
372.7 / H483
Helping children learn mathematics / Robet E. Reys, Mary M. Lindquist, Diana V. Lambdin, Nancy L. Smith and Marily N. Suydam. - 7th ed. - xxiii, 471p.; illustrations.
Includes index.
0-471-15163-7
ELEMENTARY EDUCATION
372.7 / H483