TY - BOOK AU - Cangelosi,James S. TI - Teaching mathematics in secondary and middle school: an interactive approach SN - 0134392337 AV - QA11 .C23 1996 U1 - 510/.71/2 20 PY - 1996/// CY - Englewood Cliffs, N.J. PB - Merrill KW - Mathematics KW - Study and teaching (Secondary) KW - Study and teaching (Middle school) N1 - Includes bibliographical references (p. 439-447) and index ER -