x

What proof means

Flowchart of algebraic proof with boxes labelled define n, write even odd and consecutive forms, substitute and simplify, factorise into target forms, and conclude

In proof, checking a few examples is not enough. We use a letter such as $n$ to stand for any allowed integer, so the argument works for every case.

Proof Lesson

GCSE
Maths
Proof

Step-by-step lessons covering OCR GCSE Maths Proof for Foundation and Higher tier. Each lesson works through exam-style questions in the written papers format. Build fluency with number, ratio and algebra first, since geometry, probability and statistics topics rely on them, and leave extra time nearer the exam for Higher-tier problem-solving and multi-step reasoning questions.

Lessons

x

What proof means

Flowchart of algebraic proof with boxes labelled define n, write even odd and consecutive forms, substitute and simplify, factorise into target forms, and conclude

In proof, checking a few examples is not enough. We use a letter such as $n$ to stand for any allowed integer, so the argument works for every case.

Proof Lesson

GCSE
Maths
Proof

Step-by-step lessons covering OCR GCSE Maths Proof for Foundation and Higher tier. Each lesson works through exam-style questions in the written papers format. Build fluency with number, ratio and algebra first, since geometry, probability and statistics topics rely on them, and leave extra time nearer the exam for Higher-tier problem-solving and multi-step reasoning questions.