The words primary school children misspell most

A small number of words cause most of the trouble

Look at a term of marked work and the same errors come back again and again. That is good news: the pool of words that regularly cost marks is small, perhaps thirty or forty across the whole of primary school, and most of them fail for a reason you can name. A word with a named reason is far easier to fix than a word that is simply "hard".

Below are the traps in the order children meet them. The point is not to memorise the list but to recognise which trap a particular word belongs to, because the repair is different for each one.

Words that are said differently from how they are spelt

These are the earliest and most stubborn. "Because" is written "becuase" or "becos" because the middle of the word is not pronounced clearly by anyone. "Friend" hides an i. "Said" is spelt nothing like it sounds. "Wednesday" and "February" both contain a syllable that has quietly disappeared from everyday speech, and "government" and "different" each lose a letter the same way.

The fix is to say the word wrongly on purpose while writing it, giving the missing syllable its full value: Wed-nes-day, gov-ern-ment, dif-fer-ent. It sounds silly and it works, because the silly version is the one the hand learns. Your child can go back to saying it normally the moment the pen is down.

Words where one letter is wrong, or one letter too many

"Separate" written with an e in the middle, "definitely" with an a, "believe" with the i and e the wrong way round. These are not badly spelt words. They are correctly spelt words with one letter out of place, and treating them as whole-word failures makes them much larger than they are.

Put your child's attempt directly under the correct spelling and have them underline the difference. Then give that single letter a hook: there is "a rat" in "separate", "definitely" is built on "finite", and the old rhyme about i before e still earns its keep for "believe" and "receive". One letter, one hook, done.

Doubled letters are the same trap seen from the other side. "Embarrass", "occasion", "necessary", "accommodate", "recommend": children rarely forget that something doubles; they double the wrong thing, or double both. Nothing about the sound tells them which, so this group has to be learnt as a picture.

Practise them in a group rather than scattered through the week, and say the rule for each one out loud as it is written: "necessary" is one c and two s; "accommodate" is two c and two m; "recommend" is one c and two m. Comparing two of them side by side is more useful than either on its own, because the confusion is between them, not inside them.

Homophones, which are not really spelling errors

"Their", "there" and "they're". "Your" and "you're". "Its" and "it's". "To", "too" and "two". A child who writes the wrong one here can usually spell both words perfectly. What they have got wrong is which word the sentence needs, and that is a meaning problem.

So split the job. Practise the spelling of each word on its own, then give a spoken sentence and ask which of the pair belongs in it. Drilling the pair together, without sentences, tends to strengthen the confusion rather than clear it.

Long words that are actually regular

"Temperature", "electricity", "opportunity", "independent". These look forbidding and are mostly well behaved: broken into syllables, they spell more or less as they sound. A child who tries to write one in a single rush will drop a middle syllable every time.

Break the word into pieces, build it piece by piece, then write it whole. This group is the one where a child's confidence grows fastest, because the words look impressive and the method is reliable.

Finding your own child's list

The national list of common errors is a useful starting point, but the list that matters is your child's, and it is usually shorter and stranger. Some children lose marks to double letters and to nothing else. Some are fine everywhere except homophones.

The only way to find it is to collect misses over several weeks and look for the pattern. If you use Spelling Stars for the week's list, it keeps every attempt and shows you which words your child missed, so the pattern comes out of the record rather than out of your memory of last Tuesday. Once you can name the trap, you are no longer practising a list of words. You are teaching one thing, and the words look after themselves.