Subitising and counting: a guide for Reception parents
Subitising is seeing how many without counting, like knowing a dice shows 5 at a glance. This guide explains what subitising is, how children learn to count one by one, why the teens are tricky, and what Reception expects, with quick games to play at home.
See it, don’t count it: 8 is a full row of 5 and 3 more.
What is subitising?
Subitising (say it “SUE-bi-ty-zing”) is knowing how many things there are just by looking, without counting them one by one. When you glance at a dice and know it is a 5, you are subitising.
There are two kinds. Perceptual subitising is seeing a very small group at once: most people can do this for up to about four things, sometimes five. Young children start with two and three.
Conceptual subitising is seeing a bigger group as smaller groups you already know, then putting them together quickly. Six on a dice is two rows of three. Seven on a ten frame is a full row of five and two more. Your child isn’t counting; they are seeing the parts.
That is why arrangement matters. Five dots in a dice pattern are far easier to see than five dots in a jumble, and the familiar patterns (dice, fingers, ten frames) are the ones children learn first.
Ready? The dots show for a moment.
Why subitising matters
Subitising is the start of number sense: a feel for how big a number is and what it is made of. A child who sees seven as “five and two” already knows something counting alone doesn’t give them.
It leads straight into number bonds. Seeing 5 as 3 and 2, or 10 as two rows of 5, is the same idea as knowing the pairs that make a number. Later it helps with adding on, because your child can start from a group they can see instead of counting everything from 1.
It also checks counting. When a child counts six dots on a dice and gets seven, a quick look tells them something went wrong.
Counting is more than saying the numbers
Many children can say “one, two, three… ten” long before they can count a pile of things. Reciting is a bit like a song; counting means linking each word to one thing. In 1978 the psychologists Rochel Gelman and Randy Gallistel described five principles of counting. In parent language:
- Same order every time. The number words always come in the same order: 1, 2, 3, never 1, 3, 2.
- One word for each thing. Touch each thing once, say one number, no skipping and no doubling up.
- The last number is how many. When you stop, the last word you said tells you how many there are.
- Any order works. Count left to right or right to left; the total is the same.
- You can count anything. Spoons, claps, jumps and sounds can all be counted.
Press a button to watch a count.
Counting to 20 and the tricky teens
After 10, English makes counting harder than it needs to be. Eleven and twelve don’t sound like “ten and one” or “ten and two”, so they just have to be learned. Thirteen and fifteen sound a lot like thirty and fifty. And for 13 to 19 we say the small number first (six-teen) but write the ten first (16).
So it is normal for a child who counts confidently to 10 to wobble between 11 and 20, skip a teen, or say “eleventeen”. Count the teens together often, and point to the numbers as you say them. When “thirteen” comes up, lean on the “teen” so it doesn’t blur into “thirty”.
Counting back is harder than counting on, and it is worth practising with rockets, lifts and stairs. Then try one more and one less: “What is one more than 7?” A child who has to count from 1 every time is still counting; a child who just knows it is 8 is starting to see how numbers fit together.
Tap a number, or count on and back.
What Reception expects
In England, the end-of-Reception goals for maths come from the Early Years Foundation Stage (the 2021 framework, still in use). Under Number, children at the expected level “have a deep understanding of number to 10, including the composition of each number” and “subitise (recognise quantities without counting) up to 5”. They should also recall number bonds up to 5 and some to 10.
Under Numerical patterns, they “verbally count beyond 20, recognising the pattern of the counting system”, and compare amounts up to 10.
- 5subitise up to 5 without counting
- 10a deep understanding of number to 10
- 20count out loud beyond 20
These are goals for the end of the year, not the start. Most children get there through lots of short, playful practice, and plenty are still firming up the teens in Year 1. For the whole year, see Reception maths.
Subitising and counting games for home
Two or three minutes, often, beats one long session. None of these needs anything you don’t already have.
Once small groups are easy, move on to number bonds. There are more ideas in the games in the app.
Grown-ups ask
Questions and answers
What is subitising?
Subitising is knowing how many things there are just by looking, without counting them. Seeing a 5 on a dice and knowing it is 5 straight away is subitising. Small groups up to about four are seen at once; bigger groups are seen as smaller parts, like 6 as two rows of 3.
Is subitising expected in Reception?
Yes. The Early Learning Goal for Number in England says children at the expected level subitise (recognise quantities without counting) up to 5 by the end of Reception, alongside a deep understanding of number to 10.
My child can count but doesn’t know how many. Is that normal?
Very normal. Saying the number words in order comes first; understanding that the last number you say tells you how many comes a little later. Count together, then repeat the last number with a sweep of your hand: “1, 2, 3, 4, 5. There are five.”
How can I practise subitising at home?
Use dice and dominoes, flash fingers for a second and ask how many, or show a few objects under a tea towel and lift it briefly. Keep it quick and playful, and start with dice patterns because they are the easiest to see.
Why does my child skip numbers or count the same thing twice?
Matching one number word to one object takes coordination as well as knowledge. Lining things up, touching each one, or moving each one into a bowl as you count makes skipping and double counting much less likely.
Should my child be able to count to 20 in Reception?
The Early Learning Goal asks children to count out loud beyond 20, recognising the pattern of the counting system. Counting objects accurately is expected to 10. The teens are tricky, so wobbles between 11 and 20 are common well into Year 1.
Why are the teen numbers so hard?
Eleven and twelve don’t follow a pattern, thirteen and fifteen sound like thirty and fifty, and for 13 to 19 we say the ones first but write the ten first. Lots of counting aloud with the written numbers in view helps.