32 Choo Choo to the /ʧ/ Sound

Catherine Huertas

Guided Practice Script

Do you know what sound the trains make? (shows a toy train) They go “choo choo”!  Can you repeat after me “choo choo”[1].

Here you can hold the train while we practice the sound, so I’m going to place this piece of paper in front of you. I would like you to say the /ʃ/ sound we just practiced. Did you notice how the paper didn’t move? Now can you say a powerful /t/ when saying the word toy.  Did you see that paper move that time? [4]. It moved because you were using a lot of air to make the sound.

Okay lets look in the mirror, pretend like you are going to make the /t/ sound. Do you see how your tongue is touching the back of your front two teeth? [3] Now pretend like you are going to make the SH sound, make sure you see your tongue touch the back of your teeth[3].

I’m going to use a toothette (i.e, stick with sponge at end, like a lollipop) to put a bubblegum flavor on the back of your two front teeth and on the inside of your back teeth [2]. To make this sound you need to have air. Now I want you to open your mouth and have your tongue touch all these places and blow a big puff of air, great job [3]! Okay let’s shut our teeth and do the same thing with a big puff of air [3]! Perfect!

I’m putting the paper in front of you again, try to make a strong /ʧ/ with big puff of air. Did you see the paper move [4]? Amazing job. Now what sound does the train make ? Yes “choo choo”! Great job!

Targeted Techniques and Considerations

Elicitation Techniques in the Script

  1. Facilitating context
  2. Instruction using touch cues
  3. Phonetic placement
  4. Instructions using demonstration

 

Common /ʧ/ Sound Errors

  • Error: Deaffrication (i.e., replacing the /ʃ/ for the /ʧ/), stopping by substituting the /t/ for the /ʧ/.
    • Likely causes: Incorrect placement of the articulators and incorrect amount of airflow.

 

Accent or Dialect Variation

  • There are not many variations of /ʧ/ in English. For those that speak French or Arabic often replace /ʧ/ with /ʃ/ when speaking English because their primary languages do not include the /ʧ/ sound.

License

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Choo Choo to the /ʧ/ Sound Copyright © 2026 by Catherine Huertas is licensed under a Creative Commons Attribution-NonCommercial 4.0 International License, except where otherwise noted.