Teaching for mastery rejects the idea that a large proportion of people ‘just can’t do maths’. All pupils are encouraged by the belief that by working hard at maths they can succeed. Pupils are taught through whole-class interactive teaching, where the focus is on all pupils working together on the same lesson content at the same time. This ensures that all can master concepts before moving to the next part of the curriculum sequence, allowing no pupil to be left behind.  Learning is broken down into small steps to enable learners to master a concept, before moving onto the next part of the curriculum sequence. Significant time is spent developing deep knowledge of the key ideas that are needed to underpin future learning. The structure and connections within the mathematics are emphasised, so that pupils develop deep learning that can be sustained. This is achieved by interleaving the five bog of ideas for mastery; coherence, mathematical thinking, fluency, variation and representation.