text: Lessons in certain classes can be very difficult for every student to understand. Some are fast learners and catch on before others, others might need the lesson to slow down just to get a grasp on what is really being taught. Using the Facial Action Coding System could really improve the understanding in teachers of who really gets the lesson and can continue and who doesn't understand and just really needs more help. As mentioned in paragraph 6 by Dr. Huang, "A classroom computer could recognize when a student is becoming confused or bored... Then it could modify the lesson, like an effective human instructor." Schools around the world are using technology more and more every day, so installing such a system to help understand confusion and boredom could be very useful for schools everywhere.