Abacus is a unique maths toolkit for inspiring a love of maths and ensuring progression for every child. Written by an expert author team, it has been carefully crafted on a robust approach to creating inspired and confident young mathematicians. n n n n Year 1 Mastery Checkpoints n n n n 33 short activities, to be used throughout the school year n Designed to help you check mastery of key concepts straight after teaching, enabling quick intervention for those children who need it n Have you mastered...? questions aim to assess mastery of the relevant outcome n Champions Challenge questions aim to assess whether some children have achieved mastery with greater depth n My Learning pages provide opportunities for children to reflect on their learning n