String, Straightedge, and Shadow: The Story of Geometry by Julia E. Diggins
$22.00
This delightfully illustrated, classic 6th Grade reader recreates the atmosphere of ancient times when men, using three simple tools — the string, the straightedge, and the shadow, discovered the basic principles and constructions of elementary geometry more than two thousand years ago.
6″ x 9″, 155 pages, color illustrations, perfect-bound softcover
ISBN 978-1-938210-09-9