High GCSE grades are gained through a combination of good knowledge, good understanding and good exam technique. The Do Brilliantly At... series is all about exam technique and because it's written by the people who mark the exams, it really should help students improve their performance. science exams and provides examples of exam questions across all the exam boards. With key skills highlighted, lots of questions to try and tips from top examiners, it should give students the confidence they need to do well.