I would suggest that teachers show their students concrete examples of the negative effects of the actions that gangsta rappers glorify.
“People who don't know how to keep themselves healthy ought to have the decency to get themselves buried, and not waste time about it.”
“I think it's fair to say that personal computers have become the most empowering tool we've ever created. They're tools of communication, they're tools of creativity, and they can be shaped by their user.”