2.35 Completing the Square Higher GCSE PowerPoint Lesson

This 27-slide lesson introduces completing the square as a method for rewriting quadratic expressions and identifying the turning point of a parabola. Students will practise completing the square for monic quadratics and use the completed form to determine the coordinates of the turning point. The visual link between algebra and graph shape is emphasised throughout to deepen understanding. As a challenge, students will complete the square for non-monic quadratics, preparing them for solving quadratics using this method in a future lesson.

This content is on the Higher tier only.

The lesson includes:

• Clear, guided examples

• Discussion opportunities from Think, Pair, Share

• Mini whiteboard section to check understanding and clarify misconceptions

• Two structured tasks to practise key skills

• Challenge activity to extend and deepen learning

Perfect for engaging learners while reinforcing essential algebra concepts.