See the structure. Show the method.
GCSE Maths
revision.
GCSE Maths rewards a clear chain of reasoning more than a lucky final number. These guides start from the structure of the problem — a balance, a labelled triangle, a ratio that must be shared — then show the method an examiner can follow. Learn the process, retrieve it from memory, and check the answer in the original question.
Number and ratio
Number and ratio
made memorable.
Fractions, decimals, percentages, ratio, proportion, indices and standard form — the number skills every paper still tests.
All Number and ratio revisionFractions, decimals and percentages
Convert fluently between fractions, decimals and percentages, then use multipliers for increase, decrease and reverse percentage.
Start revising 02Ratio and proportion
Share amounts in a ratio, scale recipes, and distinguish direct proportion from inverse proportion with a unitary method.
Start revising 03Indices and standard form
Use the index laws with confidence and write large or small numbers in standard form for science-style GCSE questions.
Start revisingAlgebra
Algebra
made memorable.
Linear equations, quadratics, simultaneous equations and graphs, built on the balance method rather than shortcuts.
All Algebra revisionAlgebra
Collect like terms, expand and factorise, and solve linear equations with the balance method: whatever you do to one side, do to the other.
Start revising 02Quadratic equations
Solve ax² + bx + c = 0 by factorising, completing the square, or the quadratic formula, and know how many roots to expect.
Start revising 03Graphs
Plot and interpret y = mx + c, read gradient and intercept, and recognise linear, quadratic and other standard GCSE graphs.
Start revising 04Simultaneous equations
Solve two linear equations together by elimination or substitution, and read the solution as the intersection of two lines.
Start revisingGeometry
Geometry
made memorable.
Pythagoras, trigonometry, circle theorems and the diagrams that earn method marks when they are labelled first.
All Geometry revisionTrigonometry
Use SOHCAHTOA on right-angled triangles: label opposite, adjacent and hypotenuse from the angle, then choose sine, cosine or tangent.
Start revising 02Pythagoras
Use a² + b² = c² on right-angled triangles to find a missing side, including in 3D and in reverse to test for a right angle.
Start revising 03Circle theorems
Use the GCSE circle theorems with reasons: angle in a semicircle, centre and circumference, cyclic quadrilaterals, tangents and the alternate segment.
Start revisingProbability and statistics
Probability and statistics
made memorable.
Chance, tree diagrams, averages and grouped data, with the language of probability kept between 0 and 1.
All Probability and statistics revisionProbability
Work with probabilities between 0 and 1, including tree diagrams, independent and dependent events, and the AND / OR rules.
Start revising 02Averages and data
Choose and calculate mean, median, mode and range, including from frequency tables, and estimate the mean of grouped data.
Start revisingBuilt for real revision
GCSE Maths,
without the waffle.
GCSE Maths revision that treats method as the mark scheme: fractions, ratio, algebra, graphs, trigonometry, Pythagoras, circle theorems and probability, with working shown line by line.
12 guides, each with a memory hook, precise knowledge, a worked example and a retrieval check. Use a page for a quick refresh before exam questions, or as the first step in a spaced revision session.