Elementary mathematics is anything but elementary :
Bahr, Damon L.
Elementary mathematics is anything but elementary : content and methods from a developmental perspective / Damon L. Bahr, Lisa Ann de Garcia. - Australia : Wadsworth Cengage Learning, c2010. - xx, 517 p. : ill. (some col.) ; 28 cm.
Includes bibliographical references and index.
9781439046715
Mathematics--Study and teaching (Elementary)
QA135.6 / .B33 2010 CIRC
372.7
Elementary mathematics is anything but elementary : content and methods from a developmental perspective / Damon L. Bahr, Lisa Ann de Garcia. - Australia : Wadsworth Cengage Learning, c2010. - xx, 517 p. : ill. (some col.) ; 28 cm.
Includes bibliographical references and index.
9781439046715
Mathematics--Study and teaching (Elementary)
QA135.6 / .B33 2010 CIRC
372.7