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MA10-10 Maths Coming soon

Constructing Algebraic Proofs

MA10-10

This lesson is coming soon.

In this lesson

Construct an algebraic proof of a general statement by representing the unknowns correctly and carrying the algebra through to the required conclusion.

What it covers

  • Representing a general algebraic statement correctly, especially 'consecutive' quantities (n, n+1, n+2 and variants)
  • Carrying the algebra through to the required conclusion (e.g. showing an expression is always a multiple of some number)
  • Understanding why one or two numerical examples cannot substitute for a general algebraic proof

Key words

For: AQA GCSE 8300, Edexcel GCSE 1MA1, Eduqas GCSE C300, OCR GCSE J560, Edexcel IGCSE 4MA1

On the specification

BoardSpecStatement
AQA GCSE 8300A6Know the difference between an equation and an identity
Edexcel GCSE 1MA1A6Know the difference between an equation and an identity; argue mathematically to show algebraic expressions are equivalent, and use algebra to support and construct arguments
Eduqas GCSE C300HA6Know the difference between an equation and an identity; argue mathematically to show algebraic expressions are equivalent, and use algebra to support and construct arguments and proofs
OCR GCSE J5606.01aUnderstand and use the concepts and vocabulary of expressions, equations, formulae, inequalities, terms and factors.
Edexcel IGCSE 4MA1H2.2EUse algebra to support and construct proofs
For teachers

This GCSE Maths lesson teaches constructing algebraic proofs. By the end, students should be able to construct an algebraic proof of a general statement by representing the unknowns correctly and carrying the algebra through to the required conclusion. It works through two worked examples and the mistakes examiners report.