Ann Arbor “Black English trial” (1979)
(And Oakland School Board 1996)
Teachers use African American Language to teach standard English:
http://www.pbs.org/speak/seatosea/standardamerican/
http://www.cal.org/topics/dialects/aae.html
http://www.cal.org/resources/digest/christ01.html
http://www.stanford.edu/~rickford/ebonics/LingAnthro1.html
and KRS-1 Boogie Down Productions Why is that?
http://www.amazon.com/Why-Is-That-Explicit/dp/B002JLW0D8/ref=sr_1_13?ie=UTF8&qid=1251911946&sr=1-13