Practice these steps 5 days a week, for at least 15 minutes each time.
Mouthpiece work:
Buzz on the mouthpiece. Do low notes (slow air, relaxed lips) and high notes (fast air, tighter lip corners)
Attach the mouthpiece using a gentle twist and use the picture above to remind you how to hold the trombone.
Lip Slurs: Play three notes Low-High-Low.
In first position (slide all in).
In second position (halfway to the bell).
In third position (slide at the bell).
In fourth position (slide out a bit more).