Summary Endorsed by Cambridge Assessment International Education 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. – Support and build on knowledge gained from the Learner’s Book with practice exercises – Provide additional ‘intelligent practice’ through variation – Challenge learners to deepen and extend their understanding – Incorporate the principles of variation and intelligent practice in each activity.