Abacus is a popular Maths scheme used by thousands of schools all over the world. It fully aligns to the UK National Curriculum. Written by a team of experts, led by Series Editor, Professor Ruth Merttens. For children who are following a UK National Curriculum-based maths scheme, the pupil book provides guidance for each strand the national curriculum. Each Pupil Book includes: the right 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.