It is very important to just say the pure sound, not add a vowel onto the sound, to help children learn to read and sound out words.

Pure sound in phonics is the pronunciation of each letter sound clearly and distinctly without adding additional sounds to the end. For instance, the /f/ sound is pronounced as 'f' and not 'fuh. An understanding of pure sounds will help children to blend and segment words.  c-u-p (easier to blend to read) rather than cuh-ur-puh (you may have been taught this way and it makes reading much more difficult.)

In Early Years and Key Stage 1, we use the Little Wandle scheme to teach phonics and reading. We use the VIPERS approach to continue to teach reading in Key Stage 2.

Do look at the Little Wandle website parent section for a wealth of information about how to say the sounds and how you can help your child https://www.littlewandlelettersandsounds.org.uk/resources/for-parents/ 

Ask your child's teacher if you want any extra help or advice to help your child learn to read at home.