Children are taught to use every relevant subject to develop their mathematical fluency. Confidence in numeracy and other mathematical skills is a precondition of success across the curriculum. We teach children to apply arithmetic fluently to problems, understand and use measures, make estimates and sense check their work. They are taught to understand the cycle of collecting, presenting and analysing data. Children are given opportunities to apply the skills they have learnt so that they develop mastery and the ability to reason mathematically.