Some things you might want to try:
If you want to experiment with Clawpack for advection or acoustics (or other applications), see the Clawpack Quickstart guide. There are suggestions there on how to do some first experiments.
See the slides tutorial1.pdf for some suggested exercises.
Solutions: tutorial1solution.pdf
Clawpack results for the dam break initial data, using the full nonlinear shallow water equations. How well does it agree?
tar file: shallow-1d-1.tar