The Shanghai Maths Project Teacher's Guide part B, along with part A, provides teachers with all the support they need to deliver the programme of study as part of a mastery approach. It takes teachers through each topic, explains mathematical contexts and provides teaching ideas and activities for whole-class, intervention and enrichment. The Shanghai Maths Project Teacher's Guide 3B, together with The Shanghai Maths Project Teacher's Guide 3A, provides teachers with all the support they need to deliver the Year 3 maths programme of study as part of a mastery approach to teaching. Contents include: • Comprehensive introduction, including guidance on mastery, variation theory, the concrete pictorial abstract (CPA) approach • Recommended teaching sequence and planning support • Units of teaching, with suggested activities for whole-class instruction, methods and suggested activities to provide same-day intervention and same-day enrichment (mastery with greater depth).