The third "R"
Subtitle: mathematics teaching for grades K-8
By: Gerald R. Rising, Joseph B. Harkin.
Contributors: Harkin, Joseph B., 1926- joint author.
Publisher: Wadsworth Pub. Co.
Published: 1978
Place of publication: Belmont, Calif
Language: eng
Number of pages: 332
Subjects: Mathematics -- Study and teaching (Elementary)
Notes: Includes bibliographies and index.