Scrap paper: The habit that costs marks in the 11+

Picture this. Your child is doing a practice paper. They read a question, stare at the page for ten seconds, write a single answer and move on. No working. No jottings. Nothing.

You ask, "How did you work that out?"

"In my head."

It feels impressive, but in an exam it can make all the difference.

The habit of skipping scrap paper is one of the most common – and most fixable – reasons children lose marks in the 11+. It's a process problem, and the good news is that process can be easily taught.

Why writing it down matters

There's a concept called "cognitive offloading". It sounds technical, but the idea is simple: your brain has limited working memory, and writing things down frees up space to actually think.

When a child tries to hold five numbers in their head while doing a multi-step calculation, they're burning most of their mental energy on remembering rather than reasoning. The moment they jot those numbers on scrap paper, they can stop tracking and start solving.

This is how mathematicians, engineers and exam candidates at every level work. The rough notes aren't a sign that you don't know the answer – they're the process that gets you there.

Why children resist it

Most children who skip scrap paper aren't lazy. They're in a hurry or they want to appear confident. Often they were told they're clever and internalised the idea that clever people don't need to wrixxte things down.

Boys, in particular, often fall into this trap. Tutors and teachers notice it constantly: a reluctance to put anything on paper unless it's "the answer." There's a kind of pride in it – doing it in your head feels faster, more impressive. The problem is that in a timed exam with complex multi-step questions, it's also more likely to fall apart.

It's worth saying: this isn't exclusively a boy thing. High-ability girls often do it too, especially those who've sailed through primary school without needing to show working. The 11+ is often the first exam where their natural ability isn't quite enough on its own.

In maths, it's non-negotiable

11+ maths papers – particularly GL papers – are not testing whether children can do simple arithmetic. They're testing multi-step problem solving: percentage changes applied to decimals, fractions within word problems, area and perimeter combined, time and distance questions with multiple variables.

Try holding all of that in your head and you'll see the problem.

Here's the kind of question where scrap paper makes the difference:

To solve this cleanly, a child needs to work how much each candle has melted after 4 hours (green candle: 4 × 2.7 = 10.8 cm; yellow candle: 4 × 1.9 = 7.6 cm). Then they need to work out the difference between the two (the green candle lost 10.8 − 7.6 = 3.2 cm more than the yellow candle).

Questions like this have multiple distinct steps, each building on the last.

Do one step in your head and you might get it. Do all of them – under time pressure, in an exam room – and the chance of an error somewhere is high. Write each step down, and you've got a record you can check.

In NVR, it's less obvious – but just as important

Parents often assume non-verbal reasoning is a "just look at it" test. You either see the pattern or you don't.

It's not quite that simple. NVR questions often involve tracking multiple changing features at once – shape, size, shading, rotation, position. When children try to hold all of that in their heads, they lose track. When they annotate, they don't.

The annotation doesn't have to be elaborate. A quick key: "shape changes each time," "shading goes: black, white, grey, repeat" – even a simple mark can stop a child cycling through the same wrong options repeatedly. On questions with multiple elements, a brief note like "rotation = 90° clockwise" means they can verify each option systematically rather than guessing.

In a test where every question counts, systematic beats intuitive.

The exam allows it – so practise using it

This is the part parents sometimes don't know: children are given scrap paper in the actual 11+ exam. The space is there. The expectation is that they'll use it.

Which means a child who has practised without it has trained themselves out of a tool they're allowed – and expected – to use on the day.

Getting them into the habit during practice is the whole point. Not just so they can use scrap paper, but so that reaching for a pencil when a question gets hard becomes automatic, not a last resort.

How to build the habit

The simplest thing you can do: whenever your child sits down to practise, put a notepad next to whatever they're working on. Don't make it a big deal. Just make it available, and make it normal.

If they skip it on an easy question, that's fine. If they skip it on a hard one, ask them to try again – out loud if needed, writing down each step as they go. When they get the right answer that way, they'll start to see why it works.

A few specific prompts help: "Write down the numbers you're working with." "Draw a quick sketch." "Cross out the options you know are wrong."

These are small interventions that build a much bigger habit. (And with HeyKitsu, you can cross out answer options live in the app.)

HeyKitsu is built around the 11+ curriculum – maths, English, verbal reasoning and non-verbal reasoning – and the questions are the same type children will see in the actual exam. If your child is practising on the app, encouraging them to keep a notepad alongside it is a simple way to make every session a bit more exam-ready.