THE BRIDGE YEARS
What is Key Stage 3?
In England, school is organised into blocks called key stages. Key Stage 3 — KS3 — covers Years 7, 8 and 9: ages 11 to 14, the first three years of secondary school.
THE ENGLISH SCHOOL JOURNEY · AGES 4–18
Key Stage 3 · Years 7–9 · ages 11–14
The first three years of secondary school. No national exam — and the years where the foundations of every GCSE are laid.
THE ENGLISH SCHOOL JOURNEY · AGES 4–18
- Receptionage 4–5
- KS1Years 1–2 · ages 5–7
- KS2Years 3–6 · ages 7–11 · ends with SATs
- KS3 — your child is hereYears 7–9 · ages 11–14The first three years of secondary school. No national exam — and the years where the foundations of every GCSE are laid.See the full map ↓
- KS4Years 10–11 · ages 14–16 · GCSEs
- Sixth formYears 12–13 · ages 16–18 · A-levels
The years nobody measures
Primary school ends with SATs. GCSEs begin in Year 10. Between them sit three years with no national exam — which is why KS3 is sometimes called the forgotten years. Nothing is formally tested; almost everything that matters is quietly decided. The ideas a child secures in Years 7–9 set the ceiling on their GCSE options and grades.
If you didn’t go to school in the UK
None of this is obvious — and it isn’t meant to be guessed. The timeline above is the whole journey, ages four to eighteen. Your child is in the double-ruled block.
Arrival & foundations
New school, seven subjects taught by specialists for the first time. The year for securing the ground everything else stands on.
The deepening year
Ideas start depending on each other in earnest — algebra leans on number, chemistry leans on the particle model. The classic dip year; momentum matters.
The launchpad
The bridge into GCSE: options are chosen, early GCSE ideas appear on the horizon, and secure foundations quietly become grades.
Why a map
Three years. Seven subjects. Hundreds of small ideas that depend on each other in a definite order — you can’t collect like terms until 3x means three lots of x. The map shows every one of them, and what must come before what.
EVERY LINK SAYS WHY
Why order matters
“You can’t weigh chances you can’t write down.”
“Concentration is a ratio: how much stuff in how much water.”
“F = ma is a two-step equation wearing a lab coat.”
THE CURRICULUM, AS CARDS
Every topic on this map can become a card in your child’s pocket
Made by the professor who taught it, scheduled by the science of spacing. Tap a sample to flip it:
See how cards get made — try the demo →Your child, on this map
Their tutors teach to this exact landscape — and quietly record which ground is secure, what’s being built this term ▲, and what waits at the horizon. The map you’ve just explored is the same one their tutors keep for them.
Or start with their Learning Genius quiz — free.
FOR PARENTS
KS3 questions, answered
What is Key Stage 3?
Key Stage 3 (KS3) is the first stage of secondary school in England — Years 7, 8 and 9, ages 11 to 14. It sits between primary school (which ends with SATs in Year 6) and the GCSE years (Years 10–11).
What ages and years does KS3 cover?
Years 7, 8 and 9 — normally ages 11 to 14. Your child starts KS3 the September after finishing primary school.
Is there an exam at the end of KS3?
No. KS3 has no national exam — schools assess internally, in different ways. That absence is exactly why these years are sometimes called the forgotten years: nothing is formally measured, yet the foundations of every GCSE are laid here.
Why does KS3 matter for GCSEs?
GCSE courses assume the KS3 ground is secure — algebra assumes number, chemical equations assume the particle model. Gaps left in Years 7–9 don't disappear; they surface in Year 10 with less time to fix them. The ideas a child secures in KS3 set the ceiling on their GCSE options and grades.
What subjects does my child study in KS3?
The national curriculum sets a broad core — English, maths, science (biology, chemistry, physics), history, geography, languages, and more. The KS3 Map covers the seven subjects our tutors teach: Maths, English, Biology, Chemistry, Physics, History and Geography.
How is KS3 different from primary school?
Subjects are taught by specialists rather than one class teacher, ideas start depending on each other across subjects, and the pace of new concepts roughly doubles. The map exists to make that invisible structure visible.
Drafted by AI agents against the DfE programmes of study, reviewed by humans, validated in CI. Contains public sector information licensed under the Open Government Licence v3.0. With thanks to Marble, whose open primary-years map precedes ours. Dataset version nc2013 — the national curriculum in force in England since 2014.