The Consortium of Selective Schools in Essex (CSSE) sets its own 11+ exam, used by the Essex and Southend selective grammars — Colchester Royal Grammar, Colchester County High School for Girls, King Edward VI Grammar School (Chelmsford), Southend High School for Boys, Southend High School for Girls, and the Westcliff High Schools for Boys and Girls. It is unlike almost every other 11+ system in England in one decisive way: maths is free-response — your child writes the actual answer in a box rather than shading a bubble on a multiple-choice sheet. If you have spent months on GL-style practice, that single difference changes how you should prepare. This guide is written for Essex parents who want a clear, current picture of the CSSE format, how it is scored and exactly what to practise. Last verified for the 2026 admissions round.
CSSE in one line: is it GL or CEM?
Neither. This is the question Essex parents type most often, so let us answer it plainly: CSSE writes and marks its own papers. It does not use GL Assessment, it does not use CEM (whose paper 11+ was discontinued in 2023 anyway), and it does not use the ISEB Common Pre-Test. That matters because most off-the-shelf 11+ books and free downloads are built for GL's multiple-choice house style. They are useful for underlying skills, but they do not rehearse the thing that actually trips Essex children up — writing full answers, at speed, with no options to fall back on. When you buy or download practice, check it says CSSE or Essex, not simply "11+".
What CSSE actually tests
CSSE is two papers, sat on one Saturday morning in September of Year 6. There is no separate verbal reasoning or non-verbal reasoning paper — a genuine relief for some families, and a surprise to those arriving from Kent or Buckinghamshire.
- Paper 1 — English (about 60 minutes): a substantial comprehension passage with questions, followed by a timed creative writing task of roughly 25 minutes.
- Paper 2 — Mathematics (about 60 minutes): around 50 questions, answers written straight in, with no answer sheet and no options to choose from.
Each paper is marked out of 60 and the two carry equal weight. Scores are age-standardised — more on that below — and combined into a single total used to rank candidates. Compared with GL papers, which are tightly sub-timed into named sections, CSSE gives your child a single running clock per paper, so pacing and self-management are skills in their own right.
How CSSE compares with the other boards
If friends in other counties describe a completely different exam, they are not wrong — the boards really do diverge. Here is the shape of it.
| Board | Format | Subjects | Answer type | Prep focus |
|---|---|---|---|---|
| CSSE (Essex) | Two paper exams | English + Maths | Written / free-response | Written method, creative writing, speed |
| GL Assessment | Single-subject papers | Eng, Maths, VR, NVR (varies) | Multiple-choice (A–E) | Question-type drilling |
| CEM (online) | On-screen, blended | Numerical, verbal, NVR | Mostly multiple-choice | Vocabulary, timing |
| ISEB Pre-Test | Online adaptive | Eng, Maths, VR, NVR | Multiple-choice | On-screen practice |
The takeaway for Essex: CSSE is the outlier that rewards written technique. You can read more about the wider landscape in our exam guides and our comparison of GL-style papers if a sibling is sitting a GL region.
The free-response maths paper — why it catches families out
Most 11+ resources are multiple-choice, where a sensible guess is sometimes viable and elimination can rescue a shaky answer. CSSE maths offers none of that. Your child writes the real answer, which has three practical consequences:
- Method matters. Setting out working clearly protects marks on multi-step questions and builds the accuracy that gets the final answer right.
- Speed matters more. With no options to check against, each question genuinely takes longer, so fluency with number bonds, times tables and standard methods is essential.
- Careless slips cost full marks. There is no lucky guess to fall back on, so neatness, re-reading the question and a quick sanity check are worth drilling as habits.
Practise the exact format. Our free centre-specific mock library includes CSSE Essex mocks in the real free-response style, and the timed mock papers and topic worksheets let your child build the arithmetic speed the paper demands.
The creative writing task
CSSE gives a title (for example, "The day the lights went out") or a picture prompt, and about 25 minutes to plan and write. Markers reward control, not length. Aim for:
- A clear three-part shape — set-up, a complication, and a resolution — planned in the first two minutes.
- Varied, precise vocabulary: a few well-chosen ambitious words beat a scattering of long ones used wrongly.
- Accurate punctuation, especially apostrophes, commas and speech marks, plus varied sentence openings.
The most common lost marks come from stories that run out of time mid-scene. Teach your child to plan an ending first, then write towards it. Our revision hub has writing checklists you can print.
Scoring, standardisation and the pass mark
CSSE age-standardises each paper before combining them, which means a younger, summer-born child and an older, autumn-born child who score the same raw marks will receive different standardised scores — the younger child gets a small uplift to account for the months of schooling they have had less of. This is normal and applies across 11+ boards. Two children with a raw mark of 45/60 might land on standardised scores several points apart purely because of birth month.
Because the four schools rank applicants, the effective threshold is a moving target that depends on how everyone performs in a given year. Colchester Royal Grammar has historically sat among the highest cut-offs in England, with the Westcliff schools a little lower. Treat any specific figure you see online as an estimate, not a guarantee — always confirm current thresholds and the offer process with CSSE and your chosen schools, and remember a qualifying score is not the same as an offer, since geography and preferences also come into play.
A sensible CSSE preparation plan
Keep it simple and specific to the format:
- Build maths fluency first. Fast, accurate arithmetic underpins the whole paper — use daily short bursts on our free worksheets.
- Switch to free-response practice early. Do not let multiple-choice habits set in; rehearse writing full answers with working shown.
- Timed mocks monthly. Sit full CSSE centre mocks under real conditions to train pacing and stamina.
- Weekly writing. One planned, timed story a week, marked against a checklist, improves faster than daily unstructured writing.
- Check the dates. Registration and the September test window matter — see our key 11+ dates page and confirm deadlines directly with CSSE.
Frequently asked questions
Does CSSE include verbal or non-verbal reasoning?
No. CSSE tests only English and Maths. There is no standalone VR or NVR paper, which is one of the clearest differences from GL regions such as Kent, Medway and Buckinghamshire.
Is CSSE the same as GL or CEM?
No. CSSE writes and marks its own two papers. GL and CEM are separate national boards, and their multiple-choice practice material does not rehearse CSSE's free-response maths or its extended creative writing.
What score does my child need to pass CSSE?
Because the schools rank candidates and age-standardise scores, the effective threshold varies year to year and school to school, with Colchester Royal Grammar typically the highest. Use published figures as a guide only and confirm the current position with CSSE.