Choosing subjects & tiers
What is Key Stage 3?
Key Stage 3 is Years 7, 8 and 9 of secondary school in England, ages 11 to 14. Students follow the national curriculum in twelve subjects, plus religious education and relationships, sex and health education. There is no national test at the end of it: each school assesses Key Stage 3 its own way. Northern Ireland's Key Stage 3 is Years 8 to 10, Wales uses progression steps instead, and Scotland has no key stages.
Last updated 4 November 2026 · Written and fact-checked by the GCSEwiz team
What subjects are taught at Key Stage 3?
The national curriculum sets twelve subjects for Key Stage 3. Schools also teach religious education and relationships, sex and health education. Academies and free schools do not have to follow the national curriculum, but they must teach a broad and balanced one, so the list looks much the same almost everywhere.
| Core subjects | Other national curriculum subjects |
|---|---|
| English | Art and design, citizenship, computing |
| Maths | Design and technology, geography, history |
| Science | Languages, music, physical education |
How is Key Stage 3 assessed?
By each school, in its own way. The national tests at 14 were scrapped in 2008, and the national curriculum levels went in 2014 with nothing put in their place. So schools set their own tests and end-of-year exams, and report progress on their own scales, which is why reports from two schools can look nothing alike.
That is due to change a little: the government plans a national Year 8 reading test from 2028 to 2029. It measures reading, not maths or the other subjects.
How does Key Stage 3 lead into GCSE?
Key Stage 4, Years 10 and 11, is when most students take GCSEs, with the options chosen in Year 9. Some schools start GCSE courses in Year 9 instead, which makes Key Stage 3 two years long. Much of what Key Stage 3 teaches is the foundation GCSE builds on directly: in maths, fractions, ratio, percentages, angles and Pythagoras' theorem are all taught at Key Stage 3 and carry straight on into GCSE.
Is Key Stage 3 the same across the UK?
No, and it is easy to be caught out by the year numbers, because Northern Ireland counts from a year earlier.
| Nation | The years that match | How it works |
|---|---|---|
| England | Years 7 to 9, ages 11 to 14 | Key Stage 3 of the national curriculum |
| Northern Ireland | Years 8 to 10, ages 11 to 14 | Key Stage 3, organised into Areas of Learning |
| Wales | Years 7 to 9 | No key stages: the Curriculum for Wales uses progression steps, with step 4 at about 14 |
| Scotland | S1 to S3 | No key stages: the Broad General Education runs to S3, and National qualifications start in S4 |
Guides for Years 7 to 9 on this site
The questions parents and students in Years 7 to 9 ask most, each answered on its own page:
Practice on the topics that carry on into GCSE
Many GCSE Maths topics begin at Key Stage 3, so a Year 7 to 9 student can practise the ones they are meeting in lessons with GCSEwiz's GCSE-style original questions, each marked straight away with a worked solution, and see which topics are moving. Start on the free plan - no card needed.
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