Abacus Year 4 Textbook 3 (Abacus 2013) (en Inglés) - Ruth Merttens

Part of the Abacus toolkit, the textbooks provide: * the perfect balance of practice and problem-solving for each area of maths * pictorial representations to support children's conceptual understanding * clearly laid out questions with instructions that are easy to follow * 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