Light and shadows, space relationships through the phenomena of shadows
Subtitle: an illustrated teacher's guide for use in the early primary grades
By: Elementary Science Study.
Series: A McGraw-Hill science module
Publisher: Webster Division, McGraw-Hill
Published: 1976
Place of publication: New York; Toronto
Language: eng
Number of pages: 32
Subjects: Geometrical optics.; Shades and shadows.
Notes: Includes bibliographies.