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
- Facilitating context
- Instruction using touch cues
- Phonetic placement
- 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/.
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- 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.