Developing arithmetic concepts and skills /
Shipp, Donald E.
Developing arithmetic concepts and skills / by Donald E. Shipp and Sam Adams - Englewood Cliffs, N.J. : Prentice-Hall, 1964 - 403 p. : ill. ; 24 cm.
Includes bibliographies
64-010039
Arithmetic--Study and teaching (Elementary)
Developing arithmetic concepts and skills / by Donald E. Shipp and Sam Adams - Englewood Cliffs, N.J. : Prentice-Hall, 1964 - 403 p. : ill. ; 24 cm.
Includes bibliographies
64-010039
Arithmetic--Study and teaching (Elementary)
