K and G - open your mouth and hold your tongue tip down so only the back of your tongue goes up for this sound.
S and Z - make sure the tiger stays in the cage! Don't let the tongue stick out, keep teeth closed and tongue behind the bottom front teeth.
L - make sure your tongue gets up to "the spot" behind your top front teeth! Open your mouth and SMILE! Don't round your lips.
F - bite your bottom lip with your top teeth and gently blow air out.
R - get your tongue up, back, tight. Your lips should curl when saying this sound correctly. Try words like "shirt" and "church" to help with /r/ vowels (ir, er, ur)
TH - bite your tongue tip gently with your teeth- make sure your tongue sticks out and gently blow air out over your tongue.
SH - almost like the /s/ sound, but your tongue should almost touch the roof of your mouth. Round your lips like a fish!
CH - the train sound! Almost like /sh/ and /t/ sounds combined. Round your lips like a fish and make sure there is a quick burst of air.