This power point presentation introduces adding and subtracting fractions with the same and then with different denominators. It also demonstrates how to add and subtract mixed numbers and improper fractions. Key vocabulary is revised and there are revision pages on equivalent fractions, simplifying fractions and converting mixed numbers and improper fractions. At each stage of revision or new learning, there are opportunities for children to discuss and practice skills and knowledge and explain their reasoning. Word problems included towards the end of the presentation and to assess learning, children are prompted to spot mistakes in fraction calculations. The final page encourages self evaluation. The presentation contains a contents page with hyperlinks to different pages, allowing the opportunity to skip or revise objectives as required. The presentation is intended to be used as a whole lesson - or over a series of lessons - where talk and practice are encouraged in order to consolidate and revise skills before moving learning on. The presentation could also be used for revision of the different stages involved in adding and subtracting fractions with a whole class, small group or for individual learning.