UK Key Stages: Explained

Navigating the UK education system can be challenging. Year groups replace “grades,” with primary and secondary schools divided into Key Stages, each ending with specific assessments like SATs or GCSEs.

Confused about the UK education system? Unsure about what year groups and key stages actually are? Do not worry, we are here to help!

In many countries across the world, pupils of different ages are grouped in what are termed ‘grades’. In the UK, these are called ‘year groups’, starting from ‘Reception’ (children aged 4-5) and ending with ‘Year 6’ (children aged 10-11) in Primary Schools, and starting at ‘Year 7’ (pupils aged 11-12) and ending with ‘Year 11’ (pupils aged 15-16) in Secondary Schools. Some secondary schools may also teach years 12 and 13 (ages 16-17 and 17-18 respectively).

Below is a list of each school type and the year groups and corresponding ages that they cover:

School TypeYear GroupAge Range
Primary SchoolReception4-5
 Year 15-6
 Year 26-7
 Year 37-8
 Year 48-9
 Year 59-10
 Year 610-11
Secondary SchoolYear 711-12
 Year 812-13
 Year 913-14
 Year 1014-15
 Year 1115-16
Sixth Form/CollegeYear 1216-17
 Year 1317-18

These year groups are each placed in to separate ‘Key Stages’, with a key stage encompassing multiple year groups. At the end of each Key Stage, the performance of each pupil will usually be assessed by their schools and teachers, with these assessments taking different forms depending on age.

The following list provides information on each Key Stage and the years it covers, alongside the assessments and learning typically undertaken by pupils at the end of each Key Stage.

Early Years Foundation Stage (EYFS):

Key Stage 1 (KS1):

Key Stage 2 (KS2):

Key Stage 3 (KS3):

Key Stage 4 (KS4):

More About GCSEs

Key Stage 5 (KS5)

Year 12

Year 13

Not all secondary schools will have provisions for post-16 students. Some, however, will have a sixth form or college which covers the ages of 16-18. Typically, A-Level (Advanced-Level) examinations will be taken, but there are other qualifications or exam types that can be taken in this Key Stage. A-Levels are graded from A*-E, with A* being the highest, and E the lowest. A-Levels are typically used by universities as an indicator of whether they can admit a student to their courses. Typically, a wider range of subjects are offered at A-Level than GCSE, which, again, depends on the school.

It is important for international teachers looking to teach in the UK to familiarize themselves with the UK Key Stages and the assessments undertaken at the end of each one. Though the differences between ages and year groups between countries may seem confusing, researching and gaining clarity on this will not only help you in potential job interviews with UK schools, but provide an excellent footing for your first UK teaching position.

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