Piltz, Albert, 1915-

Creative teaching of science in the elementary school / [by] Albert Piltz [and] Robert Sund. - 2nd ed. - Boston, Allyn and Bacon 1974. - x, 310 p. : ill.

Bibliography: p. 297-304.


Science--Study and teaching (Elementary)
Learning by discovery.

LB1585 P54 1974