OCR A-level Maths: Differentiation (Pure Year 1) – Complete Lesson Pack

A complete, ready-to-teach OCR A-level Maths (H240) lesson on differentiation, for Pure Year 1. Students meet the derivative as the gradient of a tangent, prove results from first principles, differentiate powers term by term after rewriting roots and fractions, and use gradients at points. Built for teachers and tutors who want fully modelled lessons without hours of preparation. Covers OCR specification 1.07a, 1.07b, 1.07d, 1.07g, 1.07i.
Topics covered:
• Understand the derivative as the gradient of the tangent, found from first principles
• Differentiate axⁿ for any rational n, term by term
• Rewrite roots, fractions and products as powers before differentiating
• Find gradients at points, where the gradient takes a value, and where a function is increasing
What’s included: annotated PowerPoint with click-by-click I do / We do modelling and speaker notes (plus a PDF); Bronze, Silver and Gold exam-style worksheet with full worked answers; two A5 student help cards; a two-page teacher guide with OCR spec links, timings and misconceptions; double-sided homework (19 questions, 44 marks: AO1 21, AO2 11, AO3 12) with a separate answer copy; printable exit tickets.