11+ prep · Slough

Slough 11+ tutors and grammar-school prep

Slough's four grammar schools (Herschel, Langley, St Bernard's and Upton Court) form the Slough Consortium and share a single 11+ entrance examination, sat in September of Year 6. The test is provided by GL Assessment, which replaced the consortium's previous arrangements in 2024.

Quick reference

Test name
Slough Consortium 11+ entrance examination
Test provider
GL Assessment (provider changed in 2024)
Format
Two papers, each approx. 60-65 minutes, separate computer-marked answer sheet
Content
Verbal reasoning, non-verbal reasoning, English and maths mixed across both papers; no separate English paper
Eligibility score
111 standardised (Herschel: top 35% of the cohort sitting)
Test date (2027 entry)
Saturday 19 September 2026
Registration
1 May to 5 June 2026, via the consortium portal (now closed)
Number of grammars
4 (Herschel, Langley, St Bernard's, Upton Court)

The Slough grammar schools

Slough has four state grammar schools, and all four operate as the Slough Consortium for entrance-test purposes: Herschel Grammar School, Langley Grammar School, St Bernard's Catholic Grammar School and Upton Court Grammar School. A child sits one 11+ examination whatever number of the four they apply to.

Upton Court is the school formerly named Slough Grammar School. It was renamed in 2013, so older references to "Slough Grammar" describe the same school rather than a fifth one.

The schools are their own admissions authorities. Each publishes its own oversubscription criteria and makes its own formal offer, so a qualifying score opens the door at all four but the criteria that follow differ school by school.

The Slough Consortium 11+

The examination is provided by GL Assessment. The consortium changed provider in 2024, so practice material written for the earlier arrangements no longer reflects what candidates sit.

The examination is two separate papers, each of approximately 60 to 65 minutes, containing a variety of questions testing verbal, numerical and non-verbal ability. The schools describe the content as a combination of verbal reasoning, non-verbal reasoning, English and mathematics spread across both papers. There is no separate English paper.

Questions use a range of answer formats and candidates mark a separate answer sheet, which is marked by computer. Answers written in the question booklet cannot be transcribed afterwards. Familiarisation material published by GL Assessment is placed on the consortium schools' websites.

Papers are marked and standardised by GL Assessment, and the result reported to parents is a single standardised score across both papers. Raw scores are not supplied to the consortium and are not available to parents.

Eligibility score

The eligibility score is set at 111 on a standardised scale. Herschel states that pupils scoring 111 or above are in the top 35% of the cohort sitting the examination. Reaching 111 makes a child eligible for consideration at any consortium school named on the Common Application Form. It does not secure a place: there are far more eligible candidates than places, so each school's oversubscription criteria decide the outcome. A child below the eligibility mark is not placed on any Slough grammar waiting list at any point.

Dates for September 2027 entry

Registration ran from 1 May 2026 to 10am on 5 June 2026 through the consortium portal, and is now closed. Late registration is not accepted except in exceptional circumstances. The examination is on Saturday 19 September 2026, at four test centres, one at each grammar school. Results are published online in mid-October 2026, ahead of the Common Application Form deadline of 31 October 2026. Local authorities notify allocations on 1 March 2027.

A single alternative test date is available for candidates who cannot attend on 19 September for religious or medical reasons. Clashes with other schools' entrance tests are not grounds for a later sitting.

Scores are not shared with other schools

The consortium holds its own GL Assessment contract and does not share 11+ scores with any other school. Since the 2024 provider change, the earlier arrangements under which some schools accepted the Slough test no longer apply. Reading School and Kendrick School in Reading use different testing procedures, so a Slough score carries no weight there and a child targeting both areas sits both tests.

How tutoring usually focuses

Verbal and non-verbal reasoning

These question types sit outside the National Curriculum, so primary teaching does not cover them. Tutors work through the recurring pattern types: coded language, analogy, sequence, matrix patterns, hidden words.

Maths fluency under time pressure

The numerical content is KS2-level rather than advanced, so the demand is speed and accuracy rather than harder material. Tutors drill arithmetic fluency, fractions and percentage problems until a child answers reliably at paper pace.

English content

English is assessed within the two mixed papers rather than as a paper of its own. Wide reading and targeted comprehension work, particularly inference and retrieval, are the usual focus.

Answer-sheet technique

Because a separate computer-marked answer sheet is used and booklet answers are not transcribed, practising the mechanics of transferring answers correctly under time pressure matters. The consortium's familiarisation material is the right source for the current answer formats.

Practice material

The consortium does not publish past papers. Commercial GL-style practice from publishers such as CGP and Bond is the usual substitute. Check that a pack describes the current two-paper format rather than relying on its publication date.

Choosing a Slough 11+ tutor

Ask tutors about recent Slough cycles specifically, and about the grammar you are targeting. The 2024 provider change is the thing to probe: a tutor whose Slough experience predates it may be working from the wrong format.

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The paper mixes reasoning, English and maths content, so breadth matters more than narrow specialism. Tutors who work only maths-heavy or only English-heavy briefs fit this test less well. Online and in-person both work: online widens the pool of specialists, while tutors near Slough often have closer knowledge of individual schools' criteria.

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Common questions

  • Which Slough grammar schools take the test? +

    Four schools form the Slough Consortium and use one common examination: Herschel Grammar School, Langley Grammar School, St Bernard's Catholic Grammar School (girls) and Upton Court Grammar School. A child sits a single test whatever number of the four they apply to. Upton Court is the school formerly called Slough Grammar School, renamed in 2013. Each school is its own admissions authority and applies its own oversubscription criteria after the test.

  • Who provides the Slough 11+ and what is the format? +

    GL Assessment. The consortium changed provider in 2024, so material written for the earlier arrangements no longer matches what candidates sit. The examination is two separate papers, each of roughly 60 to 65 minutes, containing a variety of questions testing verbal, numerical and non-verbal ability. The schools describe this as verbal reasoning, non-verbal reasoning, English and mathematics mixed across both papers. There is no separate English paper. Candidates mark a separate answer sheet that is marked by computer; answers left in the question booklet cannot be transcribed afterwards.

  • What score does a child need? +

    The eligibility score is 111 on a standardised scale. Herschel states that pupils scoring 111 or above are in the top 35% of the cohort sitting the examination. The score reported to parents is a single standardised score across both papers; raw scores are not supplied to the consortium. Reaching 111 makes a child eligible for consideration at any consortium school named on the Common Application Form, but there are far more eligible candidates than places, so each school's oversubscription criteria decide who is offered one. A child below 111 is not placed on any Slough grammar waiting list.

  • What are the dates for September 2027 entry? +

    Registration ran from 1 May 2026 until 10am on 5 June 2026 through the consortium portal and is now closed; late registration is not accepted except in exceptional circumstances. The examination is on Saturday 19 September 2026 across four test centres, one at each grammar school. Results are published online in mid-October 2026, ahead of the Common Application Form deadline of 31 October 2026. Allocations are notified on 1 March 2027.

  • Does a Slough score count at Reading School or Kendrick? +

    No. The consortium holds its own GL Assessment contract and does not share 11+ scores with any other school. Since the 2024 provider change, earlier arrangements under which some schools accepted the Slough test no longer apply. Reading School and Kendrick School use different testing procedures, so a child targeting both areas registers and sits separately for each.

  • When should we start preparing? +

    Most Slough families start in Year 5, ahead of the September sitting in Year 6. The paper mixes reasoning, English and maths content, so breadth matters more than narrow specialism, and the reasoning question types are the part primary school does not cover. Answer-sheet technique is worth practising given the separate computer-marked sheet.

  • What practice material matches the current test? +

    The consortium does not publish past papers. GL Assessment familiarisation material is placed on the consortium schools' websites and is the right source for current question and answer formats. Commercial GL-style practice from publishers such as CGP and Bond is the usual supplement; check that a pack describes the current two-paper format rather than relying on its publication date.

  • What should we ask a Slough 11+ tutor? +

    Ask about recent Slough cycles specifically, and about the grammar you are targeting. The 2024 provider change is the useful probe: a tutor whose Slough experience predates it may be preparing for a format that no longer applies. Both online and in-person tutoring work, with online widening the pool of specialists and local tutors often knowing individual schools' criteria more closely.

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Written by Robert S. Reviewed by Fiona H. Last reviewed