Tonbridge Entrance Exam: What to Expect and How to Prepare

Tonbridge School assesses its 13+ candidates in stages, starting in Year 6 and finishing in Year 7. The first stage is the ISEB Common Pre-Test, taken online, followed by an assessment afternoon at the school. Boys who do well receive a provisional offer and return in Year 7 for written papers and a short interview before the place is confirmed. Knowing what each stage involves, and when it falls, is the difference between focused preparation and effort spent on the wrong thing. This guide explains Tonbridge's process and how to prepare.

The three-stage process

Tonbridge assesses boys for 13+ entry across three stages spread over two school years. The first is the ISEB Common Pre-Test, sat online in Year 6. The second is an assessment afternoon at Tonbridge, which combines a carousel of activities with a one-to-one interview, and a report from the current school feeds into this stage too. Boys who do well across these are made a provisional offer, and the third stage follows in Year 7, when those boys return to sit written papers in maths and writing alongside a short interview before the place is confirmed. Understanding this sequence matters, because the preparation for each stage is different and the stages fall well apart in time. Our guide to the Tonbridge interview covers the interview elements in detail.

The ISEB Common Pre-Test

The first stage is the ISEB Common Pre-Test, which Tonbridge asks boys to sit by 1 December of Year 6. It is an online, adaptive test, taken either at your son's current school or an approved test centre, and it covers four areas: English, Mathematics, Verbal Reasoning and Non-Verbal Reasoning. The whole test takes around two and a half hours, with the individual sections lasting roughly forty minutes for English, forty for Maths, twenty-five for Verbal Reasoning and thirty for Non-Verbal Reasoning. Because it is adaptive, the questions adjust to your son's answers as he goes, and because it is age-standardised, it measures him against other boys of exactly the same age in months, so a summer-born boy is not disadvantaged against an older classmate. Our dedicated guide to the ISEB Common Pre-Test covers the test in full.

The assessment afternoon

Alongside the Pre-Test, Tonbridge invites boys to an assessment afternoon, sometimes called an experience afternoon, at the school. This is built around a carousel of activities designed to let boys work both individually and collaboratively, together with a one-to-one interview with a member of the teaching staff. The afternoon lets Tonbridge see how a boy thinks, how he works with others, and how he comes across in conversation, which a screen-based test cannot capture. The afternoon may fall before or after the Pre-Test depending on the assessment wave, and the report from your son's current school is considered alongside it. For a boy who is genuinely curious and works well with others, the afternoon is a chance to show more than a score can.

The provisional exams

Boys who do well at the first two stages receive a provisional offer, and the final academic stage follows in Year 7. Tonbridge invites these boys back, usually in March of Year 7, to sit provisional exams consisting of a sixty-minute mathematics paper and a seventy-minute writing paper, along with a short interview. This stage confirms the academic standing that the Pre-Test indicated and gives the school a fuller picture of a boy's written work as he matures. Because it falls more than a year after the Pre-Test, it rewards steady academic progress through Year 7 rather than a single push, and a boy who has kept his maths secure and his writing developing arrives well placed. It is a confirmation stage rather than a fresh hurdle, but it is a real one, so it should not be treated as a formality.

How to prepare

Because Tonbridge assesses in stages, preparation is about steady, genuine competence rather than a single crammed effort. For the Pre-Test, the foundation is secure English and Maths built early, with wide reading to support comprehension, and because the test is timed, adaptive and on-screen, some online practice under realistic conditions is worth doing so the format holds no surprises. For the assessment afternoon, the best preparation builds confidence and the ability to work with others, since a boy who reads widely, pursues real interests and is used to talking about ideas will engage naturally. For the provisional exams in Year 7, keeping maths secure and writing developing through the year is what matters. Throughout, the aim is a genuinely able, curious boy rather than a drilled one, since the staged process rewards real progress over a short-lived peak.

What to avoid

The first thing to avoid is treating the Pre-Test as the whole assessment. It is only the first stage, and the assessment afternoon, the school report and the Year 7 provisional exams all carry weight. The second is over-drilling the reasoning sections, which measure aptitude and reward a curious, well-read boy more than a heavily coached one. The third is easing off after the provisional offer, when the Year 7 exams still lie ahead and reward steady progress, not a celebration. Prepare for the whole staged process, keep momentum through Year 7, and let your son's genuine ability show across each stage.