If Dr Challoner's Grammar School is on your child's list, preparation should be shaped around how this school actually selects — not generic 11+ advice. Dr Challoner's admits boys through the Buckinghamshire Secondary Transfer Test, the single county-wide exam that every state grammar in Bucks uses, so the smartest plan is to master that one test format rather than chase every board on the market. This guide sets out what the test involves, when the key dates fall, and a free, realistic practice plan you can follow from Year 4 onwards.
About Dr Challoner's Grammar School
Founded in 1624 by the Reverend Robert Challoner, this Amersham boys' grammar is one of Buckinghamshire's oldest schools. It is a foundation grammar with a long academic tradition and a mixed sixth form, and like the other twelve state grammars in the county it selects its Year 7 intake entirely through the Buckinghamshire Secondary Transfer Test. Because the test is county-wide, preparing for Dr Challoner's is really about preparing for the Bucks 11+ — the same paper opens the door to every grammar in the area, so a strong result keeps several options open rather than tying your family to one school.
- Location: Amersham, Buckinghamshire
- Intake: Boys (Mixed Sixth Form)
- Founded: 1624
- Type: Foundation Grammar
- Admissions test: Buckinghamshire Secondary Transfer Test (GL Assessment)
For open-day dates, this year's exact admissions policy and the definitive registration deadline, treat the school's own site as the authority: challoners.com. You can also read our full school profile, and see how Dr Challoner's sits alongside the rest of the county on our grammar school directory. Because Bucks is a fully selective county with thirteen grammars, families often name more than one school on the application — but the entrance test itself is identical wherever you apply, so there is only ever one exam to prepare for.
How selection works at Dr Challoner's Grammar School
Selection is by the Buckinghamshire Secondary Transfer Test, sat in mid-September at the start of Year 6. The test is produced by GL Assessment, the provider that now dominates 11+ testing across most of England, and it is delivered as two papers. Paper 1 covers English and Verbal Reasoning; Paper 2 covers Maths and Non-Verbal (spatial) Reasoning. Between them the two papers assess the four core 11+ skill areas — English comprehension, Maths, Verbal Reasoning and Non-Verbal Reasoning — and produce a single age-standardised score. GL papers are tightly timed, split into separately-timed sub-sections, and answered without a calculator, so accuracy under time pressure matters as much as raw knowledge.
Two features matter for every candidate. First, the test is age-standardised: raw marks are adjusted for your child's birth month, so a summer-born boy and an autumn-born boy who get the same number of questions right will receive different standardised scores. A standardised scale typically runs from around 69 to 141 with 100 as the average, and the adjustment gives younger children a modest uplift to keep the test fair between the oldest and youngest in the year group. Second, Bucks uses a qualifying score of 121 — reach or beat it and your child is deemed to have passed the test, though passing and securing a place are not the same thing, as oversubscribed schools still apply their published catchment and admissions criteria. Never rely on a rumoured cut-off beyond the county's published qualifying score; confirm the current policy on the school's website and read our 11+ process guide for how testing, application and offers fit together.
| Element | What to expect |
|---|---|
| Test name | Buckinghamshire Secondary Transfer Test |
| Provider | GL Assessment |
| Paper 1 | English & Verbal Reasoning |
| Paper 2 | Maths & Non-Verbal / Spatial Reasoning |
| Format | Timed, sub-sectioned papers; age-standardised score |
| When | Mid-September, start of Year 6 |
| Qualifying score | 121 (passing ≠ guaranteed place) |
What to practise for this test
Because the Bucks test spreads its marks across reasoning, maths and comprehension, practice should be balanced rather than piled onto one strand. Verbal Reasoning rewards a wide vocabulary and quick pattern-spotting across GL's named question types — codes, letter sequences, hidden words, analogies, odd-one-out, closest-meaning and opposite pairs, compound words and number series. Non-Verbal Reasoning rewards accuracy with shapes: rotations, reflections, matrices, series and spatial folding. The maths sits at KS2 level up to roughly the Year 5 curriculum ceiling, with speed and secure mental arithmetic doing much of the heavy lifting, and the English demands careful, close reading of an unseen passage. Build sessions from these free resources:
- Verbal Reasoning — codes, analogies, hidden words, closest-meaning and odd-one-out drills in our free worksheet library.
- Non-Verbal Reasoning — rotations, matrices, reflections and series practice, also in the worksheets.
- Maths — times tables to 12×12, fractions, and worded problems, then applied under time in a full timed mock.
- Whole-paper stamina — sit GL-format papers on our mocks page and, in the final weeks, the centre-specific mocks tuned to Bucks-style sittings.
Everything above is free, and no account is needed simply to start practising. If you want a structured route through the topics, our revision hub groups the question types so you can tackle one at a time rather than jumping around, and our GL 11+ papers guide explains how the multiple-choice answer sheet works so your son is never caught out by the format on the day.
A realistic preparation timeline
Steady, early habits beat a last-minute cram. There are no invented dates here — always confirm the year's exact registration window on the school and council sites.
- Year 4: daily reading for pleasure and tables to 12×12. Build vocabulary through books, not flashcards. No formal papers yet.
- Year 5 (autumn): 15–20 minutes of daily topic practice using the free worksheets, rotating across VR, NVR and maths so no strand is neglected.
- Year 5 (spring — register): the Bucks registration window typically opens in the spring/early summer for the September test. Check our key dates page and the school's site so you do not miss the deadline.
- Year 5 (summer): one full timed mock paper a week; review errors far more carefully than the raw score.
- Year 6 (first weeks): switch to centre-specific papers in the Bucks GL format so the real September sitting feels familiar.
The single most useful habit across all three years is keeping an error log: every question your son gets wrong goes into a short list, and you revisit that list weekly. Progress comes from closing gaps, not from repeating what he can already do. Because GL sub-sections are separately timed, practise little bursts of speed work too — a page of quick questions against the clock trains the pace the real paper demands.
On the day and after
By September your son should have sat enough timed papers that the exam hall feels like the eleventh mock, not the first real test. In the last week, taper practice rather than piling it on: short, confidence-building sessions keep his hand in without exhausting him. On test morning, aim for a calm start, a proper breakfast and an early arrival so nerves settle before the clock starts. Remind him of two simple tactics — read each question once carefully, and if one stalls him, mark it, move on, and return at the end rather than losing minutes. Because GL papers use a separate multiple-choice answer sheet, practise transferring answers neatly so no marks are lost to a slipped row or a mismatched question number. After the test, resist post-mortems; results come later in the autumn, and a settled child copes far better than an anxious one whatever the outcome.
Frequently asked questions
What test does Dr Challoner's Grammar School use?
The Buckinghamshire Secondary Transfer Test, produced by GL Assessment. It covers English, Verbal Reasoning, Non-Verbal Reasoning and Maths across two papers, sat in mid-September of Year 6.
What score do I need to pass in Bucks?
The county qualifying score is 121. Reaching it means your child has passed the test, but a place at an oversubscribed school still depends on catchment and the published admissions criteria.
Do I have to apply to Dr Challoner's separately to sit the test?
No — one Buckinghamshire Secondary Transfer Test result is used by every grammar in the county. You still name your preferred schools on the local authority's common application form by its deadline, so check both the school site and the council for this year's exact dates.