Hi, I have been asked by my school to run a series of revision classes for Maths GCSE and would like some advice on how to plan them please! There will be a total of about 12-15 hours for Foundation and the same for Higher. Would you skim over the syllabus so as to revise every topic or would you pick a few topics and go into more detail on them? Which topics do students tend to need most help on? Or is it better just to go through exam papers and see what crops up? Are there any useful resources for revision classes? I guess some advice on exam technique would be useful for them too? Or would this be a waste of time? Any advice would be greatly appreciated, thank you!