Grey area

The other day I listened to a mothers story on the radio. She talked about how her 4yr old daughter's teacher contacted her and stated that she felt the little girl didn't speak "cultured" enough. In other words, she talks "white" and needs to talk more "black". What does it mean to talk "black"? This is something that I've experienced as long as I can remember. I've always been the one picked on and made fun of by the other black kids because I made good grades and wanted to speak like I had some kind of intelligence to myself. As a result, I didn't really get along with many black kids until i got to high school. So where did this mind set come from within the black community? Since when does wanting to better yourself and advance in life mean that you're acting more white and less black? Why is it the black community embraces the thought that they are less intelligent than the white community? These are all questions that I have yet to come up with an answer to. I have a couple of coworkers that make fun of me because I'm not your stereotypical black male. I guess a good question to ask is, does the way you speak measure your intelligence?  The answer is no, but society does measure your intelligence by your vocabulary. You could be a genius, but if you speak Ebonics then people will look at you like you're just another average hood ni$&@. So if this is the way society measures you. Do you conform to society and speak "white" in order to get ahead in life? Or do you go against the preconceived norm and try to prove to everyone that your vocabulary and mental capacity don't determine how far you can go? You would think this type of thinking would have gone out of style by now, but sadly it's still in fashion. I really don't even know what else to say on this subject so please just let me know your thoughts on the subject.