Here is a clip to explain how to sketch the derivative function from the original graph. It will be a lot easier further down the line when you will happily differentiate and just sketch the graph(no doubt on the calculator). However

## Shading Inequalities

Inspired by an amazing student Also see revision notes.

## The Magic Square(has difficulty)

For those students who get to the most difficult questions even The Magic Square has difficulty. Here is the solution to a more challenging quadratic factorising question

## Factorising Quadratics – Easy with The Magic Square

A couple of lessons on factorising quadratic expressions, see lesson 2 for The Magic Square method. Lesson 1 – the number before the squared term is 1. Lesson 2 – A bit trickier now, the number before the squared term