Notes / Guide
English National Curriculum & Key Stages
What EYFS and Key Stages 1 to 5 mean, how they map to year groups and ages, and what actually gets taught and tested when.
Why the labels matter
British-system schools talk in Key Stages and year groups, not ages. A parent moving between countries or schools needs to read those labels quickly, because they decide which class a child enters and what comes next.
The structure is a single ladder from nursery to the end of school. Each rung has a name, an age band, and a set of subjects that are required at that point.
The English National Curriculum is the framework. Cambridge and Pearson Edexcel are exam boards that operationalise it into specifications and exams. They are not a separate or rival curriculum. When a school says "British curriculum", it means this ladder, taught toward those boards' qualifications.
The ladder, mapped
| Stage | Year groups | Ages | Endpoint |
|---|---|---|---|
| EYFS | Nursery, Reception | 3 to 5 | Early Learning Goals |
| Key Stage 1 | Years 1 to 2 | 5 to 7 | Phonics check in Year 1 |
| Key Stage 2 | Years 3 to 6 | 7 to 11 | End-of-KS2 tests in England |
| Key Stage 3 | Years 7 to 9 | 11 to 14 | School assessment, option choices |
| Key Stage 4 | Years 10 to 11 | 14 to 16 | GCSE or IGCSE |
| Key Stage 5 | Years 12 to 13 | 16 to 18 | A-Levels or equivalent |
Ages are the typical English entry ages and shift slightly by country and school cut-off date. The year group is what carries over between British-system schools, so it is the safer reference when comparing.
EYFS, the early years
The Early Years Foundation Stage covers nursery and Reception. It is distinct from the National Curriculum proper and works differently: developmental areas rather than subject timetables.
It is built around prime areas (communication and language; physical development; personal, social and emotional development) and specific areas (literacy; mathematics; understanding the world; expressive arts and design). It is play-based and developmental, and it ends with the Early Learning Goals in Reception, which prepare a child for the more formal structure of Key Stage 1.
For parents this is the stage where school style varies most. Two good schools can run very different EYFS provision, so see it in person rather than read the prospectus.
Primary: Key Stages 1 and 2
Key Stage 1 (Years 1 and 2) and Key Stage 2 (Years 3 to 6) are the primary years.
English, mathematics and science are the core subjects and run throughout. Around them sit the foundation subjects, history, geography, computing, art, music, physical education, languages and others, phased in across the stages.
The framework sets what should be taught and the standard expected, not how a school must teach it. That is why two schools following the same National Curriculum can feel very different in the classroom. The structure is shared; the delivery is the school.
In England there are national check points: a phonics screening in Year 1 and tests at the end of Key Stage 2. Most international British-system schools follow the curriculum structure and year naming but do not sit England's national tests, using their own assessment instead. Confirm what a specific school runs rather than assuming.
Secondary: Key Stages 3, 4 and 5
Key Stage 3 (Years 7 to 9) is the broad lower-secondary phase. The subject range is at its widest here, and it ends with the choices that shape the rest of school, which subjects a student carries into Key Stage 4.
Key Stage 4 (Years 10 and 11) is the GCSE or IGCSE phase. Students narrow to a core plus options and sit external exams at the end of Year 11. Internationally this is almost always the IGCSE.
Key Stage 5 (Years 12 and 13) is the sixth form: A-Levels, or the IB Diploma where a school offers it instead, taken at the end of Year 13. This is the qualification universities assess. Everything below it is the foundation it is built on.
The progression is the part to hold onto. Each stage feeds the next, and the decisions that close or keep open later options are made earlier than parents expect, especially the move from Key Stage 3 into Key Stage 4.
What this means at an international school
International British-system schools adopt this ladder for its clarity and its recognised endpoints, not because they run every part of the English machinery.
In practice that means: the year-group structure and progression are followed; the exam endpoints that matter are the IGCSE at 16 and A-Levels at 18; England's internal national tests are usually not sat. A school's curriculum page will rarely spell this out, so for anything that affects a transition, ask directly which stages, assessments and boards it uses.
The short version for parents
The English system is one ladder: EYFS for nursery and Reception, then Key Stages 1 to 5 from age 5 to 18, with Years 1 to 13 mapping onto it. English, maths and science run throughout; other subjects phase in; the framework sets what and to what standard, not how, which is why schools on the same curriculum differ. The endpoints that count internationally are the IGCSE at the end of Key Stage 4 and A-Levels at the end of Key Stage 5; most international schools follow the structure but not England's internal national tests. Use the year group, not the age, when comparing schools, and check the stage and assessments directly before any move.