Understanding Speech Sound Disorders: A Parent‑Friendly Guide

Speech sounds are the individual units of sound that we use to form words when we speak. They’re created by moving and coordinating different parts of the mouth—like the tongue, lips, teeth, and vocal cords—to shape airflow in specific ways. Each sound has its own “recipe” for how it’s made.

Speech sound development follows a fairly predictable path, though every child moves at their own pace. As toddlers begin to talk, they usually master easier sounds first—those made with the lips or front of the mouth. It’s completely normal for young children to simplify words or swap sounds while they’re still learning.

By around age three to four, most children can produce many common sounds clearly, though trickier ones like r, th, sh, and ch and combinations of consonants like sp, st, and kl, take longer to master.

Speech sound disorders are more common than many families realise, and they can feel worrying when you’re watching your child struggle to express themselves. The good news is that most children make excellent progress with the right support, and there’s a lot you can do at home to help. This overview walks you through the main types of speech sound disorders and offers simple, parent‑friendly strategies to encourage clearer speech.

Main Types of Speech Sound Disorders

1. Articulation Disorders

These involve difficulty producing specific speech sounds. For example a child might not be able to say the k/c sound. Or they might be using a distorted version of a sound - for example the 's' sound might sound slushy or lisped. In almost all cases there is no physical reason why the child has an articulation difficulty.

2. Phonological Disorders

Here, the challenge is more about patterns of sound errors rather than individual sounds, and is to do with the child's knowledge and awareness of which sounds go where within words. A child may consistently drop final consonants (“ca” for “cat”) or use one sound for many (“doe” for “go,” “toe,” and "so"). Phonological disorders are very common and can be mild or more severe.

3. Childhood Apraxia of Speech (CAS)

CAS is much rarer, and is more complex as it is because of difficulty with planning and coordinating the movements needed for speech. Errors are inconsistent, speech is effortful, very unclear and can lack typical rhythm.

4. Dysarthria

Again this is much less common. Speech may sound slurred, slow, or monotone. Dysarthria is often associated with neurological conditions.

Simple, Supportive Ways Parents Can Help

Model, don’t correct

If your child says “tat,” respond with, e.g. “Yes, a cat! The cat is soft.” This gives them a clear model without pressure or embarrassment. Repetition helps their brain absorb the correct sound.

Slow down your own speech

Children benefit from hearing clear, calm, slightly slower speech. It gives them time to process sounds and patterns.

Play sound‑focused games

Make practice fun. Try:

• Rhyming games and songs

• Clapping out the beats (syllables) in words e.g. ba-by, bu-tter-fly

• Talk about where the sound is in the word - ("listen the sss sound is at the end of 'bus")

• Listening games (“Can you hear the ‘s’ sound in sun and in soap)

• Silly sound play (“Let’s make all the ‘p’ sounds we can!”)

  
  

Use visuals and gestures

Pointing to your mouth, exaggerating movements and making sounds like s, f, sh longer so they are emphasised.

Celebrate effort, not perfection

Speech development takes time. Praise attempts, keep practice short and playful, and avoid drawing attention to mistakes.

Seek professional support when needed

It can be difficult to know whether your child's speech development is as it should be. If you’re concerned that you or others can't understand a lot of what your child says, or you think their speech sounds different to other children their age, then The SALT Hub can help - contact one of our therapists to discuss your concerns.