As a dance teacher at an inner city school, one of my best ways is the music that I select or should I say let the students select. I keep a stack of blank cds and I distribute these to students for music with the parameter that it must be “Rated G’ and school appropriate- it has to pass the Grandma test- Would you play it for your Grandma? Do students ever try to sneak music past you? Yes!! As long as you are consistent, it is amazing how students will police each other.