O'Connell Susan R.

Glyphs! : data communication for primary mathematicians / by Susan R. O'Connell. - Torrance, CA : Good Apple : Frank Schaffer Publications, 1997. - 64 p. : ill. ; 28 cm.

Grades 1-3.

Subjects--Topical Terms:
Mathematics--Study and teaching (Primary)
Mathematics--Problems, exercises, etc.
Glyphs (Graphic methods)

Dewey Class. No.: 372.7