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