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School guides 7 min read · 2026-07-12

How to prepare for Altrincham Grammar School for Girls (11+ guide)

School-specific 11+ preparation for Altrincham Grammar School for Girls in Altrincham: the admissions test it uses, the registration timeline, and a free practice plan.

Families targeting Altrincham Grammar School for Girls ask the same first question: what exactly should we practise? The honest answer is that preparation only works when it fits how this school selects, so this guide starts with the Trafford entrance test AGGS uses and builds a free, realistic practice plan around it. No account is needed to start practising, and every worksheet and mock we point you to is free forever.

About Altrincham Grammar School for Girls

Altrincham Grammar School for Girls (AGGS) is a leading girls' grammar in the north-west, known for consistently very high academic outcomes and a strong record of progression to competitive universities. It is one of a small cluster of selective schools in Trafford, one of the few remaining selective local authorities in the North of England. Because places are heavily oversubscribed, the entrance test does real work: a strong, calm performance on the day matters as much as raw ability, and that is exactly what sensible preparation builds. Selection is by the Trafford schools' shared entrance test, not by catchment alone, so where you live does not remove the need to prepare thoroughly for the papers.

For the definitive admissions policy, registration deadlines and open-evening dates, always treat the school's own website as the authority: aggs.trafford.sch.uk. You can also see how AGGS sits alongside the other Trafford grammars in our UK grammar school directory, and read the full school profile for a quick reference on intake and location.

How selection works at Altrincham Grammar School for Girls

Entry to AGGS is by the Trafford schools' shared entrance test, sat in Year 6 (the September of the year before entry). Trafford operates a consortium arrangement: the selective schools coordinate a common test so a child sits one set of papers that can be considered by several Trafford grammars, rather than a separate exam for each school. The test is now set by GL Assessment and is usually delivered as two papers of about an hour each, covering verbal reasoning, non-verbal reasoning and maths, with the sub-sections separately timed. Children register directly for the test through the consortium's process, and this is entirely separate from the local authority's Common Application Form (CAF) for a secondary place — you must complete both, and each has its own deadline.

The important thing for parents in 2026 is currency. The national 11+ landscape has changed significantly: CEM discontinued its separate paper 11+ around 2022–2023, and many former CEM regions, Trafford among the movers, now use GL Assessment. GL papers tend to be multiple-choice, tightly timed at roughly a question a minute, with answers marked on a separate sheet. Because the exact format and timings can still be adjusted between years, confirm the current test structure on the AGGS website or with the consortium before you plan — do not rely on old forum threads or pre-2023 blog posts. Whatever the label, the core skills being assessed are stable: mathematics, verbal reasoning (VR) and non-verbal reasoning (NVR), with strong English and vocabulary underpinning the reasoning. We do not publish a pass mark, because Trafford's cut-offs are competitive, age-standardised and vary year to year; chasing an invented number is not useful preparation. Age standardisation means a younger, summer-born girl earns a small uplift on the same raw mark, so the fairest goal is steady accuracy across every section.

What to practise for this test

Because the Trafford test rewards accuracy and speed across reasoning and maths, the best preparation is genuinely rounded rather than narrowly drilled. Focus on these areas:

Turn each of those into practice rather than theory. Start with a diagnostic timed paper from our free mock papers, then use the worksheet library to strengthen whichever subject the paper exposes as weakest. When you are within striking distance of the test, switch to centre-specific mocks matched to Trafford-style GL papers so your daughter rehearses the real format, the mix of subjects and the separate answer-sheet routine, not just the content. Our GL practice papers mirror the multiple-choice style she will meet on the day.

Skill areaWhat it testsFree Quest Arena resource
Verbal reasoning~21 named VR question typesWorksheets + centre mocks
Non-verbal reasoningSeries, rotations, cube nets, spatial patternsWorksheets + centre mocks
MathsKS2 arithmetic and word problemsWorksheets + full mocks
English / comprehensionInference, vocabulary, timed readingWorksheets + full mocks

A realistic preparation timeline

Steady preparation over two years beats a panicked final term. There are no invented dates here — always cross-check the real windows on the school site and our key dates page.

Use the revision hub to keep sessions short and frequent rather than long and draining; ten focused minutes most days beats a two-hour marathon at the weekend.

On the day and after

By test day your daughter should have sat enough timed papers that the real hall feels like the eleventh, not the first. Keep the morning calm and ordinary: a proper breakfast, arriving with time to spare, and no last-minute cramming that only spikes anxiety. Remind her of the practical exam habits she has rehearsed — read each instruction, keep an eye on the clock for each separately-timed section, answer the questions she finds easy first, transfer answers carefully to the separate sheet, and never leave a multiple-choice answer blank if a sensible guess is possible. If one section feels hard, that is normal and everyone finds it the same; the score is standardised, so she should shake it off and move on. Afterwards, results and the secondary offer come through the local authority's admissions process in the following months — resist reading too much into how she felt it went, as children routinely misjudge their own performance.

Frequently asked questions

What test does Altrincham Grammar School for Girls use?

AGGS selects through the Trafford schools' shared entrance test, now set by GL Assessment, with two papers of about an hour each covering verbal reasoning, non-verbal reasoning and maths. Confirm the current format and timings on the school's website before planning, as arrangements can change year to year.

What score do we need to pass?

Trafford does not publish a fixed guaranteed pass mark; entry is competitive, age-standardised and varies by year and by how many families apply. Focus on rounded, timed practice across every skill area rather than chasing a specific number.

Do we still register for a school place separately?

Yes. Registering for the entrance test is separate from applying for a secondary place through your local authority's Common Application Form. You must complete both, and both have their own deadlines — check the AGGS site and your council's admissions pages.

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