Proof Maths Lessons & Worksheets (GCSE, IGCSE & A-Level)

Curriculum Hub → Maths Lessons → Algebra → Proof

This page brings together ready-to-teach proof maths lessons for GCSE / IGCSE Higher and A-Level. Browse the full collection, including algebraic and geometrical proof, vector proofs, deduction and exhaustion, proof by contradiction, and proof by induction for series, divisibility and matrices, with each lesson designed to support clear modelling, independent practice and exam preparation.

  • Ready-to-teach proof lessons
  • Presentations, worksheets and structured practice
  • GCSE / IGCSE Higher and A-Level coverage
  • Scheme of work links for curriculum planning

Teach proof with less planning

Save planning time with complete proof lesson packs ready to use straight away. Mr Mathematics membership unlocks downloadable PowerPoint presentations, printable worksheets, structured practice and exam-style questions for this topic and the wider lesson library.

  • Download full lesson presentations and worksheets
  • Use ready-made resources for teaching, cover, intervention and revision
  • Access the wider Mr Mathematics library across number, algebra, geometry and statistics

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Use the sections below to jump straight to GCSE / IGCSE or A-Level proof lessons.
Each resource is designed to reduce planning time and support student progression.

Jump to:  GCSE / IGCSE Proof  |  A-Level Proof

Proof: GCSE / IGCSE

These GCSE / IGCSE Higher lessons develop structured reasoning in algebra and geometry, including vector arguments for properties of plane figures. Topics include:

  • Algebraic proof: proving identities and general results
  • Geometrical proof from diagrams and angle facts
  • Geometrical proof using vector notation for 2D shapes

Used in:

Ages 14 - 16

Algebraic Proof

Ages 14 - 16

Geometrical Proof

Ages 14 - 16

Geometrical Proof with Vectors

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Schools & departments: shared access, consistent planning

Give multiple teachers access to the same ready-to-teach resources, support consistent lesson sequencing across classes and reduce duplicated planning across the department. School membership is ideal for teams who want shared access to lessons, worksheets and practice across KS3, GCSE, IGCSE and A-Level.

Proof: A-Level

These A-Level and Further Mathematics lessons formalise proof techniques across Pure and Core Pure, moving from basic methods to induction arguments in algebra and linear algebra. Topics include:

  • Mathematical proof by deduction for algebraic statements
  • Methods of proof, including proof by counter-example and proof by exhaustion
  • Proof by contradiction
  • Proof by induction for sums of series
  • Proof by induction for divisibility statements
  • Proof by induction for statements involving matrices

Used in:

Ages 16 +

Mathematical Proof by Deduction

Ages 16 +

Methods of Proof

Ages 16 +

Proof by Contradiction

Ages 16 +

Proving Divisibility Statements

Ages 16 +

Proving Statements about Matrices

Ages 16 +

Proving Sums of Series

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