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Download Lesson Resources for Geometrical Proof

Mr Mathematics membership Save hours of planning with the full lesson pack — includes presentation, worksheet and detailed solutions.

What's included in this lesson pack

  • Ready-to-teach PowerPoint presentation
  • Printable student worksheet
  • Scaffolded examples for progress and constant challenge
  • Exam-style questions
  • Answers for checking and feedback

Geometrical Proof

 

Students learn to construct geometrical proof using clear diagrams, angle properties and precise mathematical reasoning.

The lesson moves from proving angle facts involving triangles, straight lines and parallel lines to developing arguments for congruence and circle theorems.

Related Blog: Proving Geometrical Relationships using Algebra
Past Exam Questions: Proof using Area of Triangles
Scheme of Work Link

Mathematical Proof

Ready-to-teach lesson pack with presentation, worksheet and exam-style practice included with membership.

Differentiated Learning Objectives
  • All students should be able to prove angle properties involving triangles and straight lines.
  • Most students should be able to prove angle properties involving parallel lines and circle theorems.
  • Some students should be able to use geometrical properties to prove congruence with a clear chain of reasoning.
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