The Los Angeles Music Center recently made a host of materials and lesson plans available for free for teaching artists of performing arts (music, dance, theatre). The materials are called ArtSource and you can find multimedia materials, lesson plans, and more! Thanks to Carol Ann for sharing!
Go to http://www.musiccenter.org/education/Teacher-Resources/Artsource-Curriculum/ and click on “VIEW AVAILABLE ARTSOURCE UNITS” for more information.