A series of three photocopiable maths activity books for secondary schools and home study. Each book covers the key objectives of the Handling Data strand of the National Numeracy Strategy for one year group at Key Stage 3. All the material is photocopiable, so minimal teacher preparation is required. Developing Numeracy has been hugely successful at primary level - and this secondary series was requested by Key Stage 3 teachers who have been using the NLS Framework since September 2001. The books are also compatible with the 5-14 Guidelines for Scotland and the Curriculum for Northern Ireland.