Why oh why do teachers/HoDs/departments devise schemes of work and then buy in textooks which don't correspond? "Miss what page is this?" "This isn't in your book, it's in the Y8 book." "Why are we doing it then?" Good question. Why do half the chapters in the book go unused because the kids did that last year or will do it next year, whilst teacher run round photocopying resources? I know some of you will tell me text books are so old-fashioned but this is maths, where practice and consolidation are crucial and those examples have to come from somewhere. Why buy the bloody book? Why not adapt the SoW to fit the reources you've given the kids?