Negative Numbers | Year 7 Maths PowerPoint Lesson

Make negative numbers click with this visual, colourful, ready-to-teach Year 7 maths lesson. The PowerPoint opens with real contexts such as temperature, depth and money, then builds number-line skills for ordering and finding differences. Pupils discover why subtracting a negative works through a pattern, rather than just memorising a rule, and meet clear worked boxes for adding, subtracting, multiplying and dividing directed numbers. A mixed-calculations slide tackles brackets, squaring negatives and the calculator key, and a misconceptions slide corrects the digit trap. Two interactive activities with answers keep pupils working, and a lift-and-diver problem models how to turn a story into a calculation. Hands-on number-line sketching supports every step. It is non-specialist friendly, ideal as a cover lesson, and builds towards GCSE algebra, graphs and standard form. About 18 slides, one hour, no prep needed. Every slide is written directly to the pupil in clear, encouraging language with correct subject vocabulary, and speech-bubble prompts point out common errors, so teachers can deliver it confidently with minimal preparation.