Course and curriculum improvement projects: mathematics, science, social sciences
Subtitle: [elementary, intermediate, secondary]
Publisher: [For sale by the Supt. of Docs., U.S. Govt. Print. Off.
Published: 1974
Place of publication: Washington
Language: eng
Number of pages: 50
Subjects: Science -- Study and teaching -- United States; Science -- Methodology
Notes: "O-547-651."

Replaces NSF 68-24 Released textbooks, films, and other teaching materials, insofar as that publication pertains to pre-college material.