My newest and favorite speech therapy tool for kids with articulation problems is to use tongue twisters with their sounds. They can be used with all ages and it makes practicing the sounds less boring because it is trickier and funny when you mess them up. It is great to use once a child has learned to say the sounds in single words, but has not mastered the sounds in spontaneous speech.
A great example for a child practicing the /f/ sound in the beginning of words:
Practice words sent home are: Fun, Four, Friends, Fluffy, Fantastic, Family, Food, Fudge, Full, and Fish
Tongue twister made: Four Fun Fluffy Friends got Full eating Fantastic Food, Fudge, and Fish with their Family.
