This fully resourced two-week explanation writing unit explores the science of levers, gears, and pulleys—simple mechanisms that help us use force more efficiently. Pupils will learn how these tools make everyday tasks easier by reducing effort, increasing force, or changing direction. Through this engaging and practical context, learners will develop the ability to write clear, well-structured explanation texts. The unit follows Rosenshine’s Principles of Instruction, with high-quality modelli