Crouch, Ralph. Preparatory mathematics for elementary teachers [electronic resource] / [by] Ralph Crouch, George Baldwin [and] Robert J. Wisner.. — New York, : J. Wiley, [1965]. — xii, 505 p. : illus. 24 cm.



65012715


Arithmetic--Foundations.
Geometry.
Mathematics--Study and teaching (Elementary)

QA248.3 / .C72

372.7