Troutman, Andria, 1936- Mathematics, a good beginning : strategies for teaching children / Andria P. Troutman, Betty K. Lichtenberg. - 2nd ed. - Monterey, Calif. : Brooks/Cole Pub. Co., 1982. - x, 502 p. : ill. ; 28 cm. - Contemporary undergraduate mathematics series . Includes bibliographies and index. ISBN: 0818504927 (pbk.) : LCCN: 81017997 Subjects--Topical Terms: Mathematics--Study and teaching (Elementary) LC Class. No.: QA135.5 / .T76 1982 Dewey Class. No.: 372.7 / TRM 1982