Another common question I get asked is about how many mock papers a student should do in preparation for the exam. Work, work, work ... but best? The answer is slightly complicated by the need to practise questions vs practising a whole paper. Ever since CIE changed its spec starting June 2015, the papers before then aren't very useful for taking as a complete mock. However, they still offer a number of great opportunities to practise certain skills that you find in the current style of exam. For example, I think it's great to do a lot of practice with the old Question 3s from Paper 2. There won't be 15 facts to find as there are in the current papers - maybe only 7 or 8 -- but practising the skill of identifying "salient facts" continues to be relevant, and not just for Question 3, but even for Question 1. I know you'll probably want to do some Question 3s for the new spec, too, though, so how do you choose which ones to do only in part, and whi...
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