Creative Projects with GarageBand online course [for music teachers of middle school students]: Remixing, film scoring, composing, storytelling and radio shows http://www.midnightmusic.com.au/creative-projects-with-garageband-online-course/
I'm so happy that I found this! If you teach music, check out www.quavermusic.com. Use Technology in the Music Classroom with Quaver Creatives and IWBs! My kids have loved it so much that they have even been getting on the site at home!