I've just done a past paper and then marked my answers with the mark scheme (AQA C1, Jan 2010).
There were a few strange things in the mark scheme. For example, one answer had to be simplified to get full marks, whereas there were 2 questions on the gradient and then the second differential where you didn't get full marks when you simplified. So how are you supposed to know which is best??
What do you wish you'd been taught?