Expanding and Factorising Brackets | Year 8 Maths PowerPoint Lesson

Build real algebra fluency with this visual, colourful, ready-to-teach PowerPoint lesson for Year 8 Maths. Pupils treat expanding and factorising as inverse operations, so each one checks the other. The deck defines terms, coefficients and like terms, then walks through expanding with positive and negative terms, expanding and simplifying, and factorising fully with the highest common factor. A misconceptions slide shows the errors that cost marks, such as forgetting the second term or stopping before the expression is fully factorised, and an error-hunt task has pupils mark flawed working. Two interactive, hands-on activities give structured practice with answers included, and an area problem links algebra to geometry. Speech-bubble prompts act as quiet nudges rather than praise. Every worked example is laid out line by line so pupils can see exactly where each sign and term comes from, and the checking habit is built in from the first slide. It is non-specialist friendly, works well as a cover lesson, and builds towards GCSE double brackets and quadratics. 16 slides, about one hour, aligned to the KS3 National Curriculum.