text: The facial action coding system could tell a person if they are tired because the computer can tell by their muscles. It will tell the teacher wich student is tired so they teacher can do something about it. It will help out a lot of the teachers from telling who's falling asleep.Why they invent Facial Action Coding System? Well in my personal opinion this is a good experiment for student, family, etc, because sometimes people do not want show they emotions or feeling, for example: If a girl of school that has depression or personal problems and she do not want talk abaut that with her teacher or consuler and this girl is thinking in kill herself, if the school have the Facial Action Coding System the professor can save her life, that a great experiment, but one thing is all school can't have it because are expense so this experiment can't help to all students or families that need.