National Curriculum

KS3 Maths Topics

122 lessons across 6 units

This is the complete topic map for KS3 Maths— every part of the national curriculum for Key Stage 3, organised the way it's taught: 122 lessons across 6 units, from Algebra to Statistics. Each topic below opens a focused revision lesson, so “what should we look at tonight?” always has an answer.

Algebra25 lessons

Arithmetic sequences and nth term

Changing the subject of a formula

Difference of two squares

Drawing linear graphs efficiently

Equations with unknowns on both sides

Expanding single brackets

Factorising into a single bracket

General form ay + bx + c = 0

Geometric sequences

Linear graphs — gradient and intercept

One-step linear equations

Solving simultaneous equations graphically

Two-step linear equations

Geometry32 lessons

Angles in a triangle

Area of a circle

Area of a trapezium

Area of a triangle

Area of composite shapes

Circumference of a circle

Constructing angle bisectors

Constructing perpendicular bisectors

Exterior angles and regular polygons

Interior angles of polygons

Pythagoras' theorem (shorter side)

Similarity in shapes

Surface area of cuboids and prisms

Surface area of cylinders

Translations

Trigonometry — cosine ratio

Trigonometry — sine ratio

Trigonometry — tangent ratio

Volume of cylinders

Number33 lessons

Dividing fractions

Estimating and modelling with maths

Factors and multiples

Multiplying and dividing decimals

Multiplying fractions

Order of operations

Ordering and comparing numbers

Ordering and operating with standard form

Place value of decimals

Place value of integers

Power notation

Powers of 10 and column headings

Powers of 10 with negative exponents

Primes and prime factorisation

Rounding to decimal places

Rounding to significant figures

Standard form (large numbers)

Standard form (small numbers)

Truncating and rounding errors

Probability8 lessons

Probability of combined events

Tree diagrams for outcomes

Ratio & Proportion15 lessons

Compound units — density and pricing

Compound units — speed

Fractions of a quantity

One number as a fraction of another

One number as a percentage of another

Percentage increase and decrease

Statistics9 lessons

What KS3 Maths covers

The course is organised into 6 units: Algebra (25 lessons), Geometry (32 lessons), Number (33 lessons), Probability (8 lessons), Ratio & Proportion (15 lessons) and Statistics (9 lessons). Together that's 122 lessons — the whole course, with nothing skipped and nothing added.

How to revise with this page

Little and often beats cramming. One topic a night, done properly — read it, try the questions, check yourself — moves a grade more than a weekend binge the week before the exam. The list above is deliberately complete so you can tick through it a topic at a time.

Start from what's coming up, not from the beginning. If a class test or mock is near, open the unit it covers and work through those topics first. Between assessments, work through units in order — later topics usually build on earlier ones.

For parents:you don't need to know the subject to help. Ask which topic tonight's lesson was, open it here, and let them teach it back to you — explaining something out loud is one of the most effective revision techniques there is. At KS3 the habit matters more than the coverage: little routines now are what GCSE revision gets built on.

Common questions

What topics are in KS3 Maths?

KS3 Maths covers 122 topics across 6 units: Algebra, Geometry, Number, Probability, Ratio & Proportion and Statistics. Each topic on this page opens a focused revision lesson.

How many topics are in KS3 Maths?

There are 122 topics in KS3 Maths, grouped into 6 units.

Is KS3 Maths the same for every exam board?

KS3 Maths follows the national curriculum, so it isn't tied to a specific exam board — boards like AQA and Edexcel set GCSE specifications (Key Stage 4), not KS3. This page lists the national-curriculum topics for KS3 Maths.