text: In the clsssroom a simple tacher can't determine when every single student is confused or getting bored besides the simple fact of asking them. Even then, the students will deny they are confused in fear of fellow students picking on them. "A classroom computer could recognize when a student is becoming confused or bored... Then could modify the lesson, like an effective human instructor." The Facial Action Coding can save the teacher time in trying to figure out who is bored and who is confused, in the end helping out both the student and the teacher.