/t/
To produce the /t/ sound, have your child tap her tongue right behind her top, front teeth. If your child is having trouble figuring out where to produce the /t/ sound, have your child tap her tongue right behind her top, front teeth. If your child is having trouble figuring out where to put her tongue, use these techniques to show her the right place.
Touch the spot right behind the top, front teeth with a popsicle stick or sucker. Then tell her to put her tongue in the same spot.
Put a sticky food, like peanut butter or marshmallow cream, on the spot right behind her top, front teeth. Then, have her lick it off. When you are describing that spot again, call it the sticky spot.
To produce the /d/ sound, you can use the same cues as the /t/ sound, but your child will need to turn his voice on. Tell him this is the loud one.