text: In paragraph 6, sentence 5, it says, "A classroom computer could recognize when a student is becoming confused or bored, Dr. Huang predicts. Then it could modify the lesson, like an effective human instructor." This feature would be very useful to a teacher so they can change up their style of teaching to best suit the whole class. When in using this computer, teachers can find out who's angry or upset, and can focus their attention on those particular students and figure out what the problem is.