When to start timed 11+ papers, and how many is too many

Every 11+ family arrives at the same question, usually in the spring of Year 5: when do we start doing proper papers? The answers online run from "immediately" to "not until August", which is unhelpful in both directions.
The useful way to decide is to be clear about what a timed paper is for, because it is not what most people assume.
A mock paper does not teach anything
This is the part that gets missed. A full paper under timed conditions is a measurement, not a lesson. Your child does forty questions, gets a score, and learns almost nothing from the act of sitting it. The learning happens afterwards, in the going-through, and it happens just as well on untimed practice.
What a mock genuinely does:
- Pacing. Knowing what "too long on one question" feels like, without a parent saying it.
- Format. Answer sheets, question booklets, instructions that assume you have read them before.
- Nerves. The first timed paper is always a shock. Much better that it happens in your kitchen in June than in a school hall in September.
Notice that none of those improve by repetition beyond a handful of goes. Which is why a child who does thirty mock papers is not thirty times readier than a child who did six.
The sequence that works
For a September test at the start of Year 6:
- Until spring of Year 5: no timed work at all. Build the skills. Untimed practice, mistakes gone through properly, the four subjects rotated across the week.
- Spring to early summer of Year 5: short timed bursts. Ten or fifteen minutes, one subject, just enough to make a clock ordinary. Not full papers.
- The final eight weeks: full papers under real conditions. One a week is plenty, two at the very most, and only if there is time to go through both properly.
Starting full papers early is the most common mistake in home preparation. It teaches a child that the 11+ is long, hard and stressful, at exactly the age when their opinion of the whole project is forming.
Running one properly at home
A mock only measures anything if the conditions are real.
- No help. None. Not "what does this word mean", not a nudge at question 12.
- A visible clock, and the actual time limit, announced at the start.
- The right answer format. If the school uses separate multiple-choice answer sheets, use them: transferring answers to a grid is a genuine skill, and children lose real marks to a slipped row.
- One sitting, at a table, phone elsewhere.
- Mark it the same day, and go through it with your child the day after, not three weeks later.
What to do with the score
The score is the least interesting output. Papers vary wildly in difficulty and no two publishers standardise the same way, so a mark of 62% means very little on its own, and comparing it to a friend's child on a different paper means nothing at all.
The pattern is what matters:
- Where did the time go? Unfinished sections are a pacing problem, not a knowledge problem, and they are fixed differently.
- Which topics failed? Three wrong on fractions is a lesson to book. Three careless slips scattered across the paper is a checking habit to build.
- What happened at the end? A strong start and a collapsing finish is stamina, which improves with a small number of full papers, and only those.
If you want a genuine sense of whether your child is where they need to be, a single paper cannot tell you. That is a longer question, covered in is my child on track.
Where mocks fit with everything else
Keep the ratio sane. In the final eight weeks, one timed paper and five or six short practice sessions a week is a good shape. The paper checks the pacing; the short sessions do the actual improving.
(11max runs the mock side of this in-app: full timed papers in the real formats, marked the moment they are handed in, with the breakdown by subject and by question type sitting next to the score, so the going-through is already done when you sit down together. The daily practice stays daily practice.)
The families who over-mock usually do it out of anxiety, and the cost is real: a child who has sat twenty papers by August is bored of the format and sick of the subject at exactly the moment they need to care. Six good papers, gone through properly, beats twenty skimmed.