SKILLS (School Kids Investigating Lg in Life and Society) is a project spearheaded by Mary Bucholtz and Jin Sook Lee. They have developed a curriculum to teach lg and culture to high school students. Lots of materials you can use for projects on slang, lg use in the family,the Oakland Ebonics controversy, and multilingualism in educational contexts, including lesson plans, activities, and readings: http://www.skills.ucsb.edu/