text: The Facial Action Coding System can be very effective on teachers in a classroom. Some teachers might have a hard time understanding if the student is grasping onto the content or not. "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 instrector. The same technology can make computer-animated faces more expressive." This could dramatically help the teachers and students become more successful. It can help identify emotions that a person is feeling, without verbally having to say what is going on.