Mathex models
By: Instructional Materials Division, Encyclopaedia Britannica Publicatiuons Limited.
Contributors: Encyclopaedia Britannica Publications Ltd. Instructional Materials Division.
Publisher: Instructional Materials Division, Encyclopaedia Britannica Publications Ltd.
Published: 1973
Place of publication: Toronto, Ont
Language: eng
Format: Realia
Number of pages: 14
Subjects: Geometry -- Study and teaching.