TY - BOOK AU - Cangelosi,James S. TI - Teaching mathematics in secondary and middle school: research-based approaches SN - 067521324X AV - QA11 .C23 1992 U1 - 510/.71/2 20 PY - 1992/// CY - New York, Toronto, New York PB - Merrill, Maxwell Macmillan Canada, Maxwell Macmillan International KW - Mathematics KW - Study and teaching (Secondary) N1 - Includes bibliographical references (p. 333-340) and index ER -