Video lessons for Edexcel AS Level Maths Differentiation, covering 12.1 Gradients of Curves, 12.2 Differentiation from first principles, 12.3 Differentiating x^n, 12.4 Differentiating Quadratics, 12.5 Differentiating functions with two or more terms, 12.6 Gradients, Tangents and Normals, 12.7 Increasing and Decreasing Functions, 12.8 Second Order Derivatives, 12.9 Stationary Points, 12.10 Sketching Gradient Functions, and 12.11 Modelling with Differentiation. 11 lessons matched to the Edexcel AS Level Maths (8MA0) specification, each working through the content and then applying it to exam-style questions in Paper 1 and Paper 2 format. Suitable for AS Level Maths.