Solving Quadratic Inequalities – Complete Lesson

This is a complete lesson on solving quadratic inequalities that looks at how to use graphs to express solution sets to quadratic inequalities, including using set notation. The lesson is designed with the new GCSE specification in mind.

Lesson Objectives

  • To solve quadratic inequalities in one variable, by factorising and sketching the graph to find critical values.
  • To represent the solution set for inequalities using set notation.

Who is this Lesson For?

This pack is designed for GCSE higher tier students. It could also be used with high ability Key Stage 3 students.

What is Included?

Included in this download are the following:

  • Full lesson plan for the ‘Solving Quadratic Inequalities’ lesson, including introduction, teaching content, individual activities, plenary and suggested support and extension activities
  • Quadratic Graphs Introduction
  • Example Quadratic Inequality
  • Blank Grids
  • Student Worksheet on Solving Quadratic Inequalities
  • Solving Equations Graphically Fact Sheet
  • Complete Solutions to all Questions

Lesson Progression

This is the fifth lesson in the Solving Equations Graphically unit of work (the unit is also available as a pack including homework activities and a unit assessment).

The other lessons in the unit are: