Recently, I gave an "Introduction to Pd" workshop at the Puerto Rico Music Conservatory.

We covered:

Basic synthesis [osc~]

Sample playback [soundfiler]

Basic Arduino interface

Workshop materials are http://www.mediafire.com/?bgds4uykxpnlb3d (comments are in spanish)

Check out some pics http://www.epicjefferson.com/2012/05/pure-data-workshop/