A recent e-mail from a dedicated teacher illustrates a problem that has received far too little attention. In her kindergarten class was a little black girl who did well except for getting a very obvious question wrong. It turned out that the little girl had no problem with the concepts or the facts but had misinterpreted a word because it sounded like another word that she had heard used at home, where a "black English" dialect was spoken. Since the teacher was white, she knew that she was running a risk by getting into this issue. Opening this can of...