So, the teacher is black? Surely no racist intent can be implied here.
Well... they couldn't say 'negro'. I'm pretty sure she isn't 'black', as that is a cultural term, and not a genealogical one. The worst 'term' (being totally incorrect) is African-American.
It is getting impossible to even be politically correct.
I find it odd that negroes and other races of melanin heavy skin let everyone else decide what to call them. Don't they know what they are to begin with ? Are these 'labels' adopted by cultures because they think it gives them an advantage ?
It seems that the real purpose of all this is to keep us blaming each other for all our woes.