These clear and accessible new "Success" titles from Letts Educational cover the 2006 Maths specifications for all exam boards, since the elimination of the intermediate level that has been absorbed by the Higher and Foundation levels. Letts carried out focus groups with teachers and students to develop this format and content style. With their help, we refined all the elements of these books to meet their needs and requirements until the feedback was a 100 per cent agreeing that they would purchase and recommend the new "Success Guides". This text is laid out in 'sound bite' boxes to aid recollection, with clearly labelled diagrams to add visual clarity and further demonstrate the subject matter. A 'no nonsense' approach to revision with matching "Success Workbooks" available to test and practice revision - everything teachers and students say they want. This book is for the current GCSE Maths curriculum to be examined in 2010/2011 only. Other Letts revision titles are available for the new "GCSE curriculum starting in 2010."