CH Sound in Isolation:
When teaching the CH sound I begin by saying that it is the sound a train makes (choo-choo), or the sound of a sneeze (ah-choo!). Surprisingly, sometimes kids are able to make the CH sound by simply referencing these metaphors.
If this doesn’t work, and your child can say the /t/ sound and the SH sound, you can shape the CH sound by first making the /t/ sound and following it up with the SH sound. Doing this rapidly should produce the CH sound.
Another way of teaching the CH sound is by teaching your child where to place the tongue. Encourage her to place her tongue tip on the roof of the mouth at the bumpy ridge just before it goes down toward the back of the mouth. If she has a difficult time finding this spot you can stimulate it with her toothbrush or put a little dab of peanut butter on that spot and then have her touch her tongue to the peanut butter. After you have taught her where to place her tongue you need to teach her how to release the air. Have her hold her tongue in that position tightly and then have her release the air quickly.
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