Slough Consortium 11+: Schools, format and how to prepare

The Slough Consortium 11+ is a single shared entrance exam used by the four state grammar schools in Slough. Your child sits the test once and the result is used by all four schools when you list them on the local authority secondary application.

This is a popular consortium with applicants from Slough, Buckinghamshire, west London and beyond. That mix matters, because qualifying for the test pool is one thing, but getting an offer is decided by each school's own oversubscription criteria, and several of them prioritise children living in Slough.

Four co-educational grammar schools make up the consortium:

One test, four schools. You can apply to all four with a single sitting, but you'll still rank them in order of preference on your secondary application form.

The consortium uses GL Assessment papers. Your child sits two papers on the same day with a short break between them, and each paper takes around an hour including time for instructions and example questions.

The first paper is the Verbal Skills paper. It covers English comprehension, technical English (grammar, punctuation and spelling) and verbal reasoning. The second paper is the Non-Verbal Skills paper, covering non-verbal reasoning and Key Stage 2 maths.

Answers go on a separate machine-readable answer sheet. Most questions are multiple choice, though some maths questions ask for a numerical answer written in the answer grid. There's no extended writing in this test, which is one of the biggest differences from the CSSE in Essex.

Raw scores from each paper are age-standardised by GL Assessment. Age standardisation adjusts each child's score against the average for their exact age in months, so children born later in the school year aren't disadvantaged against older classmates.

The two standardised scores are then combined into a total standardised score. The Slough Consortium's published qualifying score is a total standardised score of 111. According to the consortium, that figure places a child in roughly the top 35% of the test cohort.

Qualifying at 111 makes your child eligible for consideration but doesn't guarantee a place at any specific school. Each school then applies its own oversubscription criteria. Most prioritise looked-after children, then children living in Slough, then siblings, then distance. St Bernard's adds Catholic faith criteria. The practical effect is that out-of-borough applicants face a much higher bar than the headline qualifying score suggests.

The Slough test covers four broad areas, so preparation should be balanced across all four rather than weighted to a favourite. Comprehension and grammar reward steady reading and explicit work on spelling, punctuation and word classes. Verbal reasoning is its own skill, with a range of standard GL question types parents tend to work through (synonyms and antonyms, letter codes, missing words, sequences and so on).

Maths follows the Key Stage 2 curriculum. Make sure your child can handle the four operations, fractions, decimals, percentages, ratio, basic geometry and time questions, all under time pressure. Speed matters more than depth.

Non-verbal reasoning involves pattern-spotting and 3D rotation. Children who haven't seen these question types before usually find them odd at first, but most pick up the patterns quickly with a few weeks of consistent practice.

A realistic preparation window is six to nine months in Year 5, with shorter, more frequent practice sessions working better than long once-a-week marathons. Familiarisation with GL-style answer sheets matters too, because the test is multiple-choice on a machine-readable form and children need to be comfortable with the mechanics, not just the content.