Here is an 11-page pdf of some warmups I use with my school and private trombone students. Most of these are based on concepts I've been playing with and teaching with for many years. Stay tuned for a new warmup concept that uses these tools and focuses your practice in a different way.
No Rules No Fear Jazz Workshop Handout
Here is a 7-page annotated handout from my most recent "No Rules No Fear Jazz" Workshops. This will give you an overview of the material in my book, "Rhythm First!" and some teaching tools and ideas if you'd like to teach beginning improvisation with my methods.