Most parents over-use mock papers, treating them as drills to be ground through. They are actually most valuable as diagnostic tools — a way to find weak areas, rehearse exam conditions, and build stamina, not simply to rack up scores. A single well-reviewed mock teaches your child more than five rushed ones. This guide shows you exactly how to run a mock, mark it like an examiner, and turn the results into a focused revision plan, all using Quest Arena's free mock papers and centre-specific mocks.
What a mock paper is actually for
A mock is a full, timed rehearsal of the real thing. In the current post-CEM landscape, most UK grammar schools use GL Assessment papers — multiple choice, marked on a separate answer sheet, tightly timed at roughly a minute a question with no calculator. Essex families sit the CSSE paper (which includes free-response maths), and many independent schools use the ISEB Common Pre-Test online. A good mock replicates the exact format your child will face, so the first time they meet the pressure is not on results day. Mocks do three jobs at once: they diagnose gaps, they train timing, and they desensitise nerves.
Sit your first full mock towards the end of Year 5 or the start of Year 6. Before that, short topic worksheets are more useful than full papers, because a child who has not yet met a topic will only be discouraged by a timed test of it. Build up from single sections to full papers as the exam approaches.
The review ratio that works
Here is the single most important rule: for every mock sat, spend at least an equal amount of time reviewing it. A 50-minute paper deserves a 50-minute review. The marks your child got right teach you almost nothing; the marks they lost are the entire lesson. Skipping review turns an expensive, tiring exercise into a guess with a number attached.
Go through every wrong answer and sort it into one of four causes. This categorisation is what turns a raw score into an action plan.
| Error type | What it looks like | What to do |
|---|---|---|
| Misread | Understood the topic but misread the question or a number | Slow the first read; underline keywords |
| Genuine gap | Has not been taught or does not understand the method | Teach the topic with a worksheet, then re-test |
| Silly slip | Knew it, made an arithmetic or bubbling error | Practise checking; slow down under time |
| Timing / left blank | Ran out of time or panicked | Train pacing and the skip-and-return habit |
Only the "genuine gap" category needs reteaching. Treating a timing problem as a knowledge problem — or vice versa — is the most common way parents waste revision hours.
Pattern-spot across several mocks
One paper is a snapshot; three papers are a trend. Keep a simple log of lost marks by topic across every mock your child sits. If they drop every ratio question across two papers, the problem is ratio, not "maths" in general. If verbal reasoning scores are fine but non-verbal reasoning collapses under time, that is a specific, fixable target. This is where Quest Arena's structure helps: once a mock reveals a weak strand, drill it directly with focused free worksheets before returning to a full paper.
A quick self-audit checklist after each mock:
- Which of the four skill areas — English, Maths, VR, NVR — lost the most marks?
- Within that area, which single question type repeats as an error?
- Were marks lost to gaps, slips, or the clock?
- Did the score improve, hold, or dip versus the last mock?
- What is the one topic to fix before the next paper?
Recreate real exam conditions
A mock only trains exam nerves if it feels like the exam. Sit it at a table, not on the sofa. Use a timer your child can see, a quiet room, and no phone or help. For GL practice, use a separate answer sheet so they rehearse the bubbling mechanics — transferring answers to an OMR grid is a genuine skill, and mis-shifting one row can cost a cascade of marks. Do a full paper in one sitting so stamina builds; the real test is a marathon, and a child who has only ever done ten-minute bursts will fade in the final section.
For pacing, give your child concrete per-question targets rather than a vague "hurry up":
- Maths and English comprehension: about 60 seconds per question.
- Verbal and non-verbal reasoning: about 30–45 seconds per question.
- Golden rule: if a question is not falling out in that window, mark it, move on, and return if time allows — never sacrifice five easy marks for one hard one.
Our revision hub and the exam guides cover technique for each question type in detail, so you can pair a weak strand with the matching how-to.
Don't over-mock
One full mock a week is plenty in the run-up; sitting more just squeezes out the review time that makes them worth doing. Over-mocking also breeds fatigue and, worse, test anxiety — the very thing mocks are meant to reduce. Between papers, keep practice "little and often": short daily worksheet sessions beat marathon cramming. As the exam approaches, use the key dates to plan backwards so the last full mock lands about a week before the real thing, leaving room to fix final gaps without burning your child out.
Interpreting the score matters too. Raw mock marks are converted to a standardised age score (SAS) in the real exam — age-adjusted, on a scale of roughly 69–141 with 100 as average — so a raw percentage from a practice paper is only a rough guide. Watch the trend across mocks and the pattern of errors, not a single number, and never compare your child's raw mock score directly to a published pass mark.
Frequently asked questions
How many mock papers should my child do before the 11+?
Quality beats quantity. Roughly six to ten fully reviewed mocks across Year 6 is ample for most children — about one a week in the final stretch. What matters is that each one is properly marked and every wrong answer understood, not the raw total sat.
When should we sit the first full mock?
Aim for the end of Year 5 summer or the very start of Year 6, once your child has met the main topics. Before then, use timed single sections and topic worksheets so a full paper does not simply test material they have not yet learned.
Should I mark it strictly or gently?
Mark it exactly as an examiner would — a wrong bubble is a lost mark, even from a slip. Being generous hides the very errors you need to fix. Be strict on the marking but warm in the conversation afterwards; the goal is to learn from mistakes, not to punish them.