TY - BOOK AU - Macnab D.S. AU - Cummine J.A. TI - Teaching mathematics 11-16: A difficulty-centred approach SN - 0-631-14148-0 U1 - 510.712 PY - 1986/// CY - Oxford PB - Basil Blackwell KW - Mathematics--Study and teaching (Secondary) N1 - Includes bibliographical references and index ER -