Willoughby, Stephen S. Mathematics education for a changing world Stephen S. Willoughby. - Alexandria, Va. Association for Supervision and Curriculum Development c1990. - v, 103 p. Includes bibliographical references. ISBN: 0871201755 11.95 LCCN: 90049407 Subjects--Topical Terms: Mathematics--Study and teaching. LC Class. No.: QA11 / .W563 1990 Dewey Class. No.: 510/.71