Capital Letters and Full Stops Worksheet (Free KS1 Punctuation)

What this worksheet teaches

By the end of Year 1, children are expected to begin punctuating sentences using a capital letter and a full stop. This worksheet isolates that single skill so it does not get lost among other demands. In the first task, children copy or rewrite short, familiar sentences, supplying the capital letter the sentence is missing at the start and the full stop it is missing at the end. In the second task, they check six sentences and tick only the ones that are correct. Some are missing a capital letter, some a full stop, and one tests the capital letter for I, so children have to check both ends of every sentence. Reading the sentence aloud and pausing where the full stop belongs is the most reliable strategy at this age, because punctuation is closely tied to the natural rhythm of speech.

How to use it at home or in class

Begin with the colouring picture: it lowers the stakes and gives reluctant writers a calm start. Then read each sentence in the first task aloud together, asking the child to point to the very first letter and the very last word before they make a mark. Encourage them to say "big letter to start, full stop to finish" as a memorable rule of thumb. For the ticking task, ask the child to explain what is wrong with each sentence they leave blank, as putting the reasoning into words deepens the learning far more than the tick itself. Keep sessions short and praise effort; this skill is built through frequent, low-pressure repetition rather than long bursts.

Common difficulties and how to support them

Two errors are very common at this stage. The first is the missing or mid-sentence capital letter, often because children are still learning which letters look different in their capital form (such as a, e and r). Practising forming capitals separately, away from the punctuation task, can help. The second is the omitted full stop, especially when a child runs several ideas together. Pausing for breath while reading aloud highlights where each sentence should end. Some children also add capitals in the middle of words, mixing upper and lower case. Writing a sentence with your child and saying ‘only one capital, right at the start’ helps, unless the sentence contains a name or the word I.

What comes next

Alongside full stops, Year 1 children learn to use a capital letter for the word 'I' and for names of people, places and the days of the week, and they meet the question mark and exclamation mark. In Year 2, they use all of these more consistently and add commas in lists. Keeping early sentence demarcation secure makes all of this later punctuation work far smoother, so it is well worth returning to a sheet like this whenever a refresher is helpful.

Frequently asked questions