text: Reading the emotional experssion of students in a classroom should be allowed because it can detect if a student is not understanding the teacher. It's importent for teachers to be able to know how there students are doing in there class when knowing there emotions. In the article Dr. Huang says, " A classroom computer could recognize when a student is becoming confused or bored." " then it could modify the lesson, like an effective human instrutor. "knowing the students emotions can benitfit the teacher and the student.