The teaching of trigonometry in the United States and Canada
Subtitle: a consideration of elementary course content and approach and of factors influencing change, 1890-1970
By: by Harold Don Allen.
Published: 1977
Language: eng
Format: Microform
Number of pages: 965
Subjects: Trigonometry -- Study and teaching -- North America -- History.
Notes: Thesis (Ed.D.)--Rutgers University.

Includes index.

Bibliography: leaves 834-947.

Microfiche. Ann Arbor, Mich. : Xerox University Microfilms, 1977. -- 11 sheets.