Helping children learn mathematics.
- 7th ed. / Robert E. Reys ... [et al.].
- Hoboken, NJ : John Wiley & Sons, c2004.
- xxi, 471, 25 p. : ill. (some col.) ; 28 cm.
Includes bibliographical references and index.
9780471151630
2003267421
Mathematics--Study and teaching (Elementary)
QA135.6 / .H45 2004
Includes bibliographical references and index.
9780471151630
2003267421
Mathematics--Study and teaching (Elementary)
QA135.6 / .H45 2004