Boston High School has its own admissions pattern, and the best preparation follows exactly how this school selects. Because entry is decided by the Lincolnshire 11+ set by GL Assessment, your child does not need a scattergun approach; they need focused, type-by-type practice in a small number of well-defined skills, sat under real timing. This guide walks through what the school is, how its selection test actually works, precisely what to practise, a realistic Year 4 to Year 6 build-up, and how to keep a calm head on test day. Everything you need to do it is free on Quest Arena, and no account is needed to start practising.
About Boston High School
Boston High is the girls' grammar in Boston, and the sister school to Boston Grammar. It is a long-established academy grammar with a mixed sixth form, and selection into Year 7 is by the Lincolnshire 11+ rather than a school-specific paper. That is good news for families, because it means the format is shared across the county's grammar system and there is a large bank of matching practice you can draw on. For this year's exact registration dates, catchment rules and open evenings, always treat the school's own website as the authority: bostonhighschool.co.uk.
- Location: Boston, Lincolnshire (region: Lincs)
- Intake: Girls, with a mixed sixth form
- Founded: 1913
- Type: Academy grammar
- Admissions test: Lincolnshire 11+ (GL Assessment)
You can find the full school profile on Quest Arena, and browse neighbouring selective schools in our grammar school directory if you are weighing up more than one option.
How selection works at Boston High School
Lincolnshire is a quietly large selective system with around fifteen state grammars, and most of them, Boston High included, use GL Assessment papers sat in mid-September of Year 6. GL is the now-dominant 11+ board across the UK, and it is the most learnable of them because the question types are published, stable and predictable. That predictability is your advantage: there are no surprises in the format, only in the specific questions.
GL papers are multiple-choice. Children mark their answers (typically options A to E) on a separate answer sheet, work without a calculator, and face tight timing of roughly a minute a question across separately-timed sub-sections. The Lincolnshire 11+ assesses the standard GL skill areas, which means your preparation should centre on:
- English / comprehension — reading a passage and answering questions on meaning, inference and vocabulary.
- Maths — Key Stage 2 arithmetic and problem-solving, up to roughly the Year 5 curriculum ceiling.
- Verbal Reasoning (VR) — word-based logic puzzles drawn from around twenty-one named GL question types.
- Non-Verbal Reasoning (NVR) — pattern, shape and spatial puzzles that sit outside the national curriculum.
Scores are age-standardised, so a summer-born child is not penalised for being younger: the same raw mark converts to a slightly higher standardised score for a younger pupil than for an older one, on a scale where 100 is the average. We deliberately do not quote a specific Boston High cut-off, because qualifying thresholds vary by year and are confirmed by the local authority and school, not by us. Always confirm the current arrangements on the school website.
What to practise for this test
Because GL question types are fixed and named, the winning strategy is to drill each type until it is automatic, then rehearse them together under timed conditions. Verbal reasoning alone spans about twenty-one types, including codes, letter sequences, hidden words, analogies, odd-one-out, closest-meaning and opposites, compound words, moving a letter between words, and number series. Non-verbal reasoning covers series, matrices, analogies, odd-one-out, reflections, rotations and cube nets or folding.
Here is a sensible order of attack, each tied to free Quest Arena practice:
- Build vocabulary first. Word knowledge is the single best predictor of both VR and comprehension scores. Read widely every day and keep a running list of new words.
- Master maths fluency. Secure times tables to 12×12 and quick mental arithmetic before tackling worded problems. Our free worksheet library has topic-by-topic maths practice.
- Drill VR and NVR by type. Work through one question type at a time until it is second nature, then mix them.
- Move to full timed papers. Begin with our GL Assessment practice papers, then progress to full-length mock papers to build stamina and pacing.
Use a first timed paper as a diagnostic: whichever subject it exposes as weakest is where the next fortnight of worksheets should go.
A realistic preparation timeline
Preparation should be a gentle, multi-year build rather than a last-minute cram. The test is sat in mid-September at the start of Year 6, so the summer before is the peak, and everything earlier is groundwork.
| Stage | Focus |
|---|---|
| Year 4 through summer | Daily reading for pleasure, times tables to 12×12, and confident mental arithmetic. No formal papers yet. |
| Year 5 autumn | Introduce 15–20 minutes of daily topic practice with free worksheets, and start meeting VR and NVR question types one at a time. |
| Year 5 spring | Check registration windows and the exact test date on the school website and our key dates page. Registration typically opens in the spring or early summer. |
| Year 5 summer | Sit roughly one full timed mock paper a week. Review the errors far more carefully than the total score. |
| Final few weeks | Switch to Lincolnshire-format centre-specific mocks and light, confidence-building revision. Taper effort in the last few days. |
Consistency matters more than intensity. A child who does twenty focused minutes most days for a year arrives far better prepared, and far calmer, than one who does marathon weekend sessions in August.
On the day and after
By September the goal is simply to let well-rehearsed skills show. The single most valuable thing you can do is make the real test feel like the eleventh sitting rather than the first, so that the hall holds no surprises. A few practical points:
- Rehearse the mechanics. Practise marking answers on a separate multiple-choice sheet, because losing your place there costs marks that have nothing to do with ability.
- Teach pacing. Encourage your child to move on from a stubborn question and come back if time allows, rather than sinking three minutes into one item.
- Sleep and breakfast. A rested, fed child thinks faster than a crammed, anxious one. Stop new revision the evening before.
- Keep perspective afterwards. The test is one measure on one morning. Praise the effort and the preparation, whatever the outcome, and remember that the head-teacher assessment and appeal routes exist within the county system.
Results timelines and any appeals process are set locally, so watch the school website and your local authority communications for the exact dates.
Frequently asked questions
Is the Boston High School entrance exam GL or CEM?
It is GL Assessment, via the Lincolnshire 11+. CEM's separate paper 11+ was discontinued around 2023, and most former CEM regions moved to GL, so GL is the format to prepare for here.
What subjects does the Lincolnshire 11+ test?
The standard GL skill areas: English comprehension, Maths, Verbal Reasoning and Non-Verbal Reasoning, all as tightly-timed multiple-choice papers with a separate answer sheet.
What score does my child need to pass?
We do not publish a specific Boston High cut-off, because qualifying scores are age-standardised and vary by year. Scores centre on 100 as average, and the authoritative threshold for the current year is confirmed by the school and local authority, not by us.