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Revision guides

GCSE Maths, explained properly

Worked methods, exam technique and revision strategy, written for students sitting AQA, Edexcel, OCR and Eduqas. Free, with no sign-up needed to read.

Algebra 11 min read

How to Solve Simultaneous Equations Step by Step (GCSE Guide)

Learn how to solve simultaneous equations step by step for GCSE Maths: elimination, substitution and the Higher-tier linear-quadratic method, with worked examples.

Updated 15 August 2026Read guide
Geometry 11 min read

GCSE Trigonometry: SOHCAHTOA Explained with Examples

Complete guide to GCSE trigonometry. Learn SOHCAHTOA, how to find missing sides and angles, and the exact values you need to memorise for every exam board.

Updated 15 August 2026Read guide
Algebra 12 min read

Expanding and Factorising Brackets — GCSE Algebra Guide

Learn how to expand single and double brackets, factorise quadratics, spot the difference of two squares and avoid the sign errors that cost GCSE marks.

Updated 15 August 2026Read guide
Number & Probability 11 min read

Percentages, Decimals and Fractions — GCSE Maths Revision

Convert between fractions, decimals and percentages in every direction, then master multipliers, reverse percentages and compound change for GCSE Maths.

Updated 15 August 2026Read guide
Geometry 9 min read

Pythagoras' Theorem — GCSE Maths Complete Guide

Everything you need to know about Pythagoras' theorem for GCSE Maths. Find missing sides, check right angles, and apply to 3D problems with worked examples.

Updated 15 August 2026Read guide
Algebra 13 min read

How to Solve Quadratic Equations: Factorising, Formula and Completing the Square

Learn the three ways to solve quadratic equations at GCSE — factorising, the quadratic formula and completing the square — with verified worked examples.

Updated 15 August 2026Read guide
Number & Probability 11 min read

GCSE Probability Questions: How to Answer Every Type

Every GCSE probability question type explained: single events, complements, tree diagrams with and without replacement, frequency trees and expected outcomes.

Updated 15 August 2026Read guide
Geometry 16 min read

Circle Theorems Exam Questions: How to Spot Which Theorem to Use

How to spot which circle theorem a GCSE exam question wants: radius, diameter and tangent clues, examiner-approved reasons, and a multi-theorem worked example.

Updated 15 August 2026Read guide
Revision Strategy 10 min read

GCSE Maths Revision Guide: How to Revise Every Topic Effectively

A complete GCSE Maths revision guide: diagnose your weak topics, use active recall, run the practise-mark-fix loop and build a timetable that sticks.

Updated 15 August 2026Read guide
Revision Strategy 12 min read

Grade 9 GCSE Maths: The Topics You Must Master

The Higher-tier topics that separate grade 8 from grade 9 in GCSE Maths, how examiners construct grade 9 questions, and how to train for them.

Updated 15 August 2026Read guide
Exam Technique 13 min read

GCSE Maths Foundation vs Higher Tier: Which Should You Choose?

Confused about Foundation vs Higher tier for GCSE Maths? This guide explains the differences, grade boundaries, and how to choose the right tier with your teacher.

Updated 15 August 2026Read guide
Exam Technique 16 min read

10 Common GCSE Maths Mistakes and How to Avoid Them

From lost method marks to the wrong calculator mode, these are the ten most common GCSE Maths mistakes students make, with a concrete fix for every one.

Updated 15 August 2026Read guide
Revision Strategy 13 min read

How Spaced Repetition Can Transform Your GCSE Maths Revision

How spaced repetition works, what review intervals look like on a real GCSE timeline, and how to apply it to maths topics, flashcards and past papers.

Updated 15 August 2026Read guide
Revision Strategy 10 min read

How to Revise for GCSE Maths in 2 Weeks

A realistic two-week GCSE Maths revision plan: diagnose with one past paper, rank topics by the marks they carry, and make the last 48 hours count.

Updated 15 August 2026Read guide
Revision Strategy 10 min read

How Long Should You Revise GCSE Maths Each Day?

The honest answer on daily GCSE Maths revision time: why 30-50 minute focused blocks beat marathon sessions, and realistic weekly schedules.

Updated 15 August 2026Read guide
Revision Strategy 12 min read

The Best Order to Revise GCSE Maths Topics

GCSE Maths topics build on each other. Learn the dependency chains, when to revise weaknesses first, and a sensible revision order for each tier.

Updated 15 August 2026Read guide
Revision Strategy 13 min read

How to Use GCSE Maths Past Papers Properly

Past papers only work if you use them well: untimed first passes, honest marking with the real mark scheme, a mistake log, and papers spaced to exam day.

Updated 15 August 2026Read guide
Revision Strategy 13 min read

The Night Before Your GCSE Maths Exam: What Actually Helps

What to do the night before GCSE Maths: light recall not cramming, the formulae sheet check, an equipment list, proper sleep, and a plan for the first five minutes.

Updated 15 August 2026Read guide
Exam Technique 10 min read

AQA vs Edexcel GCSE Maths: What's Actually Different?

AQA and Edexcel GCSE Maths share the same structure, content and topic weightings. Here is what genuinely differs between them, and why you do not choose.

Updated 15 August 2026Read guide
Exam Technique 9 min read

OCR GCSE Maths Explained: Papers, Marks and What Makes It Different

OCR GCSE Maths uses three 100-mark papers totalling 300, and its non-calculator paper sits in the middle. Here is how the exam works and what it changes.

Updated 15 August 2026Read guide
Exam Technique 10 min read

How Many Marks Do You Need to Pass GCSE Maths?

Grade 4 is the standard pass in GCSE Maths. Here are the real June 2025 marks it took on every board, and how Foundation and Higher routes compare.

Updated 15 August 2026Read guide
Exam Technique 11 min read

GCSE Maths Grade Boundaries Explained: How Grades 1-9 Are Set

How GCSE Maths grade boundaries are set after each exam series, why they move while standards stay fixed, and what the 9-1 grades mean against the old letters.

Updated 15 August 2026Read guide
Exam Technique 12 min read

How to Show Your Working for Method Marks in GCSE Maths

Most GCSE Maths marks reward method, not just answers. Learn how M, A and B marks work, and see one 4-mark question scored twice to prove working pays.

Updated 15 August 2026Read guide
Exam Technique 10 min read

GCSE Maths Calculator Paper Tips: Getting Every Mark on Papers 2 and 3

Degrees mode, brackets, ANS and unrounded answers: the calculator habits that protect marks on GCSE Maths calculator papers, with worked examples.

Updated 15 August 2026Read guide
Exam Technique 10 min read

GCSE Maths Non-Calculator Paper: What to Expect and How to Prepare

What the GCSE Maths non-calculator paper tests, the written methods worth drilling, and how estimation catches errors, with the paper order for every board.

Updated 15 August 2026Read guide
Exam Technique 10 min read

GCSE Maths Resits: The November Series Explained

Who sits the November GCSE Maths resit, why most resit students enter Foundation tier, and how resit revision differs from first-time preparation.

Updated 15 August 2026Read guide
Exam Technique 11 min read

What Formulae Are You Given in GCSE Maths — and What Must You Still Know?

Which formulae the GCSE Maths formulae sheet provides, which you must still memorise, and why using a given formula correctly is the skill being tested.

Updated 15 August 2026Read guide

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The parents’ guide to GCSE Maths, weekly

What your teenager should be revising now, how the exams actually work, and how to help without doing it for them.