This book is the leading title in a series targeted at the average A Level mathematics student which aims to tackle the basic ideas and misconceptions associated with this subject. The inclusion of stretch and challenge material caters for the most able students, and lots of regular exercises and exam questions provide plenty of practice. These books have an innovative 'flexispread' structure devised to motivate students and include real life links to inspire students. A background knowledge chapter at the beginning of each book helps to bridge the gap between GCSE and A level study tackling the retention issue of AS students. This Core book contains a free students' CD-ROM.