TANGRAM TASKS
by Mathematical Teaching Aids
$75 · Offered by Tavistock Books
San Francisco: Teachers Exchange of San Francisco, 1971 . 1st printing presumed . 15 number 'flash' cards of white stiff-stock paper, each with a geometric shape to recto & verso. 8 x 7 . Now housed in a clear archival mylar sleeve. Card 1 with pen marks to title & page number, otherwise VG overall. Item #44978 A tangram is a Chinese geometric puzzle consisting of a square
- Printing: first
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