Maths mastery, inspired by high-performing global education systems, promotes a deep understanding of key maths concepts. It emphasises slower, in-depth learning, focusing on number sense and place value. It uses a concrete-pictorial-abstract approach, encouraging visualisation and problem-solving. The whole class works together, allowing differentiation through depth of understanding. The Singapore model emphasises number strategies and model drawing for worded problems. 10ticks offers resources to support teaching this approach effectively.