/Part of the Abacus toolkit, the workbooks provide: * easy instructions for a teacher to explain to children * an ‘Action’ to make the activity more practical * a ‘Think’ to provide extra challenge * a self-assessment opportunity on every page * colour to indicate the different maths areas within the programme. Series Editor: Ruth Merttens Authors: Jennie Kerwin and Hilda Mertten Authors: Jennie Kerwin,Hilda Mertten