Two Weeks Before a Maths Exam: What Actually Helps

22 August 2026 · by Larry

There is a particular feeling that arrives about a fortnight before a paper. The date is close enough to be real and far enough away that it still feels like something can be done. So a stack of assessment books comes out, and the plan becomes: more.

More is the instinct, and it is usually the wrong one. Not because effort does not matter, but because two weeks can only do certain kinds of work, and doing more of the wrong kind uses up the time and the child at the same rate.

What two weeks can and cannot change

It is worth being honest about this at the start, because it decides everything else.

Two weeks cannot build understanding that was never there. If your child does not really know what a fraction of a remainder means, ten more papers will not install it, and every paper will confirm to them that they are bad at this. That gap is real work and it belongs to the months after this exam, not the fortnight before it.

Two weeks is more than enough to convert near-misses into marks. Questions your child could do and didn't. Steps they know and skipped. Answers that were correct arithmetic to the wrong question. In most primary papers this category is larger than the "genuinely didn't know" category, and it is the one that moves quickly.

So the whole job for the next fortnight is: find the near-misses, and close them.

Day one: mark for category, not for score

Take two or three completed papers — school papers, prelims, anything already done — and go through the wrong answers. Do not add up a score. For each one, decide which of these it was:

• Didn't understand the topic at all. They could not have started.
• Understood, but read the question wrong — answered a different question from the one asked.
• Method right, one step wrong. A copied digit, a lost carry, a sign that changed.
• Ran out of time, or rushed.
• Knew it, but left it blank because it looked hard at first glance.

This takes about half an hour and it is the most useful half hour of the fortnight, because those categories need completely different responses and "revise harder" is not one of them. Sorting them properly is what careless mistakes in maths is about, and if a lot of them turn out to be misread questions, word problems where the sums are fine but the story is not is the one to read next.

Then write one short list

Out of that sorting, write a list of the specific things that actually lost marks. Not "fractions". Something like: fraction of the remainder, two-step change problems, units in area questions, showing working for method marks.

It is almost always four to six items, not twenty. That list is the revision plan. Everything not on it is already fine, and going over it again is time spent proving something you already know.

Put the list where your child can see it and cross items off. A visible, finite list is a very different feeling from an open-ended "revise maths", and the difference matters more at eleven than we tend to remember.

Fewer papers, gone through properly

One paper done and then genuinely worked through is worth more than three papers marked and filed. The learning is not in the doing; it is in the going-back.

A rhythm that works: do a paper one day, go through the wrong ones the next. Not by reading the answer — by doing the question again, from a blank page, without the working in front of them. Looking at a solution and thinking "oh yes, of course" feels like learning and mostly is not. Re-deriving it a day later is the thing that sticks.

If a question is wrong twice, it goes on the short list from the section above. If it is right the second time, it was a near-miss and it is now closed.

Method marks are marks

Worth a specific mention, because it is the cheapest gain available in the last fortnight.

In a multi-step problem, a child who writes out their steps and makes an arithmetic slip at the end can still be credited for the method. A child who does it all in their head, writes one number, and gets it wrong has nothing to credit. Same understanding, different mark.

If your child works mostly in their head, the single most valuable habit to build in two weeks is writing the steps down — not neatly, just visibly. There is more on that in the answer was right and the marks still went.

Three things not to start now

• A new method. If your child has been taught to do something one way at school, the fortnight before an exam is not when to teach them a slicker way you remember. Under pressure they will half-remember both.
• A new tutor or a new workbook series. Any benefit arrives after the exam; the disruption arrives now.
• A timer. If timing is not already part of how they practise, adding it in the last fortnight tends to produce exactly the rushing you are trying to fix. Pace has its place, but it is built earlier, over months.

The last three days

Stop adding. The last few days are for going over the short list, doing a few familiar questions to finish on something that goes well, and sleeping properly.

That last one is not soft advice. A tired child makes exactly the mistakes we have spent two weeks trying to remove — misreads the question, drops a step, rushes the second half. Late-night cramming the day before a paper very often costs more marks than the extra revision earns.

Pack the bag the night before. Check the calculator if one is allowed, and that it works. Small logistical things are worth doing early because they are the ones that produce panic in the morning.

What to say, and what not to

Children absorb far more of our anxiety than we intend to show, and there is a particular sentence worth avoiding: you'd better do well. It does not add motivation. It adds a second thing to be frightened of on the day.

What helps more is being specific and small: you've got the fraction ones now, that was the hard bit. Naming a real improvement is believable in a way that general encouragement is not, and children can tell the difference.

And it is worth deciding, before the results come back, how you will react to them — because that reaction is what your child will remember about this exam long after the mark is forgotten. If maths has already become something they think they are bad at, when your child says they are bad at maths is worth reading before the paper rather than after it.

The short version

• Mark old papers for category, not score
• Write one short list of what actually lost marks — usually four to six things
• Do fewer papers and go through them properly, re-doing wrong questions a day later from blank
• Build the habit of writing steps down, because method marks are marks
• Do not start a new method, a new tutor or a timer now
• Last three days: no new material, familiar questions, and sleep
• Decide how you will react to the result before you see it

Two weeks is genuinely enough time to make a difference. Just not to everything — and knowing which part to spend it on is most of the work.

Related: if she knows the work and still goes blank on the day, when your child freezes on a question they know — three different things that look identical from outside, and what actually helps.

Related: over a break, keeping maths ticking over in the school holidays without turning them into term time.