Endorsed by Cambridge International Examinations to support the full curriculum framework from 2011. Consolidate learning, deepen conceptual understanding and develop problem solving skills through practice questions; ideal for independent learning, homework or extension activities - Supports and build on knowledge gained from the Learner's Book with practice exercises. - Provides additional 'intelligent practice' through variation. - Challenges learners to deepen and extend their understanding - Incorporates the principles of variation and intelligent practice in each activity