TY - BOOK AU - Perry, Claire AU - Bettison, Lan TI - Oxford GCSE maths for Edexcel. foundation. teacher's guide SN - 9780199139422 U1 - 371.3028 PER PY - 2010/// CY - Oxford PB - Oxford University Press KW - Mathematics -- Study and teaching (Secondary) KW - Methods of instruction and study ER -