Childhood Apraxia of Speech: Signs and first steps (2–5 years)

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If you’ve found yourself wondering ‘Why can my child say a word one day, but not at all the next?’ it might be that your child has a motor speech difficulty. This means the challenge isn’t that your child doesn’t know what they want to say; it’s that their brain finds it harder to plan and coordinate the movements needed for clear speech. This speech difficulty is called Childhood Apraxia of Speech (CAS)

Sonja showing power words on a board

In this post, I’ll explain what CAS can look like in 2–5 year olds, what an assessment usually involves, and what you can start doing at home to support your child without turning life into ‘speech homework all day long’.

What is childhood apraxia of speech (CAS)?

Children with CAS often have lots to communicate about (and strong ideas!) but their speech may come out as:

  • Unclear
  • inconsistent
  • hard to ‘copy’ on demand
  • frustrating for them and for you

CAS is not caused by laziness and it is not a parenting issue. It is also not something children simply ‘grow out of’ without support. But with the right therapy approach, children can absolutely build clearer speech over time.

If you’d like to read more about verbal dyspraxia, you may also find this helpful: Supporting children and families living with verbal dyspraxia.

Why is CAS such a big topic right now?

Many families come to me after months (or years) of being told:

  • ‘She’ll talk when she is ready’
  • ‘He’s just shy’
  • ‘It’s probably a speech delay’
  • ‘It’s normal for toddlers’

And sometimes it is a general delay. But sometimes it’s something more specific, like CAS.

There’s also been a huge rise in parents seeking information online, and CAS is often mentioned alongside speech sound difficulties such as:

  • phonological delay (pattern-based speech errors)
  • articulation difficulties (one sound that won’t come out clearly)
  • inconsistent speech disorder

These can look similar at first glance, which is why a specialist assessment matters.

Signs of childhood apraxia of speech in 2–5 year olds

Children develop speech at different rates, and not every unclear speaker has CAS. But here are some common features that may raise a flag, especially when you notice several together.

1) Inconsistent speech errors

Your child might say the same word in different ways:

  • ‘banana’ → nana / baba / mana
  • ‘daddy’ → gaga / daddy / dadi

This inconsistency is one of the biggest clues.

2) Difficulty copying words on request

Some children speak more easily in natural play, but when asked ‘Say ___’, they freeze or the word becomes much harder.

3) Limited sound repertoire

They may use only a small set of consonants (like /M/, /N/, /B/, /D/) and avoid others.

4) Vowel distortions

Many children with typical delays mainly struggle with consonants. But in CAS, vowels can also sound ‘off’ or change between attempts.

5) Speech that sounds effortful

You might notice your child:

  • pauses between sounds
  • tries multiple times
  • looks like they’re ‘searching’ for the right mouth movement

6) Longer words are much harder

‘Car’ might be easier than ‘carry’, and ‘carry’ easier than ‘caterpillar’.

7) Prosody differences (rhythm and stress)

Some children with CAS sound a little unusual in their speech rhythm, stress, or intonation.

8) Frustration or reduced confidence

When a child is frequently misunderstood, they may:

  • talk less
  • use gestures more
  • become upset when asked to repeat themselves

Important note: none of these signs alone prove CAS but they are a strong reason to seek a speech assessment rather than waiting.

CAS vs phonological delay vs articulation difficulty (quick guide)

These are some of the most common questions I hear.

If it’s mainly an articulation difficulty…

A child may consistently say one sound incorrectly (for example, ‘thun’ for ‘sun’- lisp- but everything else is developing well.

If it’s mainly a phonological delay…

You might notice clear patterns, like:

  • leaving off the ends of words (‘ca’ for ‘cat’)
  • swapping back sounds for front sounds (‘tar’ for ‘car’)

Patterns are often consistent and respond well to phonology-based therapy.

If it might be CAS…

Speech often feels less predictable, harder to imitate, and more impacted by word length and complexity.

If you’re unsure, that’s completely normal, and exactly why assessment matters.

What happens in a CAS assessment?

A high-quality speech assessment for possible CAS usually includes:

1) Parent discussion and developmental history

We talk about:

  • pregnancy and birth history (where relevant)
  • feeding history
  • early sounds and babbling
  • first words and how speech has progressed
  • family history of speech/language needs

2) A speech sound assessment

Your child might be shown pictures or play-based prompts so we can hear:

  • what sounds they can say
  • what they simplify
  • whether errors are consistent or inconsistent

3) An oral-motor and movement check

This isn’t about ‘strength’. It’s about coordination and planning. We look at how your child manages speech movements and transitions.

4) Stimulability testing

This means: how easily can your child learn a new sound or word with support?

For CAS, we often explore how they respond to:

  • slowed-down speech
  • visual cues
  • rhythm/tapping
  • short, simple syllable shapes

5) Functional communication and confidence

We look at how speech impacts daily life:

  • being understood at nursery
  • joining in with peers
  • asking for help
  • managing emotions when misunderstood

At the end, you should leave with:

  • a clear explanation of what we think is going on
  • a therapy plan
  • practical home strategies
  • realistic next steps

What parents can do at home

Here are CAS-friendly strategies you can start right away.

1) Choose ‘power words’

Pick 1–2 words that matter most in your child’s daily life, such as:

  • more
  • help
  • mummy
  • again
  • stop
  • open

These words are motivating and functional.

2) Keep it short and successful

For many children with CAS, the goal is quality over quantity.

Try five minutes a day rather than 30 minutes of struggle.

3) Support speech with rhythm

Some children benefit from:

  • tapping a beat on the table
  • clapping syllables
  • using a gentle ‘marching’ rhythm

This can help the brain organise the sequence of movements.

4) Celebrate approximations

If your child says ‘moh’ for ‘more’, that’s communication!

We want them to feel:

  • safe
  • understood
  • proud to try again

Confidence is a key part of progress.

A short parent story (anonymised)

One mum said to me:

‘We kept being told to wait. But I could see my child understood everything; they just couldn’t get the words out. Once we had an assessment and a plan, it felt like we finally knew what to do. The biggest change was his confidence. He started trying more.’

When should you seek support?

You don’t need to wait until school.

It’s worth getting an assessment if your child is:

  • hard to understand compared with peers
  • becoming frustrated or withdrawing from talking
  • inconsistent with words they used to say
  • struggling to imitate speech sounds
  • showing signs that match CAS

Early support can reduce stress for the whole family and help your child feel successful in communication.

Here’s how I can help:

✅ A detailed speech assessment (including whether CAS is likely)

✅ A clear therapy plan with realistic goals

✅ Practical home strategies you can use immediately

✅ Support for nurseries and schools (where needed)

✅ In-person sessions in North-West London and online options

Book your consultation here.

Final gentle reminder

You are not overreacting. Trust your instincts.

Your child is communicating the best way they can, and with the right support, speech can become easier, clearer, and more confident.

Sonja McGeachie

Highly Specialist Speech and Language Therapist

Owner of The London Speech and Feeding Practice.


Health Professions Council registered
Royal College of Speech & Language Therapists Member
Member of ASLTIP

Find a speech and language therapist for your child in London. Are you concerned about your child’s speech, feeding or communication skills and don’t know where to turn? Please contact me and we can discuss how I can help you or visit my services page.

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    For speech, this means a child needs many opportunities to attempt a target word or phrase within a single session. In a formal drilling exercise, this quickly becomes tedious and dysregulating, especially for young children. After five attempts at ‘go’, most three-year-olds have mentally left the building.

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    When a child feels observed, corrected, or under pressure to perform, the cognitive load increases and the very motor planning system we are trying to support becomes less accessible. The errors increase. The frustration escalates. The session unravels.

    Pretend play, by contrast, creates a state of engaged, relaxed absorption. The child is leading. They are safe. They are having fun. In this state, the brain is far more receptive to new motor patterns being laid down. I am not asking the child to perform speech. I am simply being present, following their lead, and slipping in carefully chosen models at exactly the right moments.

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    What this looks like in practice

    In the short video clip below you can see this dynamic in action. Notice how the session looks relaxed and playful on the surface. The child is absorbed in the pretend play scenario we have created together.

    Notice, though, what is happening underneath:

    • the consistent, gentle modelling of target words
    • the use of Makaton signs alongside speech to provide an additional sensory pathway
    • the visual mouth cues that give the child a roadmap for how a sound is shaped
    • and running through all of it, the repetition. The same words, again and again, wrapped in play.

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    Sonja McGeachie

    Highly Specialist Speech and Language Therapist

    Owner of The London Speech and Feeding Practice.


    Health Professions Council registered
    Royal College of Speech & Language Therapists Member
    Member of ASLTIP

    Find a speech and language therapist for your child in London. Are you concerned about your child’s speech, feeding or communication skills and don’t know where to turn? Please contact me and we can discuss how I can help you or visit my services page.

    3
  • · ·

    Living life with a lisp

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    The good news: lisps can be successfully treated by a Speech and Language Therapist and the earlier it’s resolved, the better. We know from the evidence base that some children’s lisps will resolve and, as always, it is completely age appropriate to have this speech pattern up until aged 4 ½.

    As with any speech and language targets your child will need to be motivated to practise their newly acquired techniques, at home and in other settings. They will eventually be able to generalise this skill, but it takes lots of practice. So, think carefully about if your child is ready and motivated before commencing Speech and Language Therapy.

    There are essentially two ways in which your child has acquired a lisp. It’s key here to mention that parents have no blame in this.

    1. They’ve mis-learned it and now incorrect production has become a habit
    2. Children have difficulties organising the sounds to make a clear production

    You may be surprised to realise that there are different types of lisps. But all the techniques will be the same.

    1. Interdental lisp

    When your child pushes their tongue too far forward, they will make a /th/ sound instead of /s/ and /z/

    1. Dental lisp

    This is where your child’s tongue pushes against their teeth

    1. Lateral lisp

    Air comes over the top of the tongue and down the sides

    1. Palatal lisp

    Your palate is the roof of your child’s mouth. Sometimes they will touch their palate when making certain sounds (e.g., /s/ and /z/)

    It’s useful for you to know what type of lisp your child has because you can then support them to make the correct production. You’ll be able to talk about where in the mouth their tongue is and where it needs to be to produce a clear sound. Your Speech and Language Therapist will be able to help you with this.

    Top therapy tips for lisps

    1. Awareness is key. Does your child know where their tongue and teeth are (i.e., are they behind their teeth)? Do they notice the air escaping? Use a mirror so that your child can see not only themselves but also you in the mirror.
    2. Repetition! As with most therapeutic intervention, practice makes perfect. So little and often is key!
    3. Make sessions fun, perhaps around your child’s interests or allow them to drink from a straw
    4. Comment on how the sound is produced (e.g., /z/ is like a bee, /s/ is like a snake)
    5. Use tactile cues. Your child’s vocal folds vibrate when they produce a sound like /z/ but not with /s/. You could use the words ‘loud’ and ‘quiet’ to describe this.
    6. Start with a /t/ sound and gradually elongate the sound to an /s/

    Having a lisp may not be problematic for some, but for other children, it can have a significant impact on their emotional wellbeing. Intervening at an early age can prevent this from happening. We always advocate for early intervention!

    Contact Sonja for support on resolving your child’s lisp.


    Find a speech and language therapist for your child in London. Are you concerned about your child’s speech, feeding or communication skills and don’t know where to turn? Please contact me and we can discuss how I can help you or visit my services page.

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