text: Another reason why it would be valuable for these computers in classes is that teachers would be able to eliminate the struggle of having to believe students, even though "humans perform this same impressive calculation every day." But the reason it is so hard for the teacher is that," most of us would have touble describing each facial trait that conveys happy, worried, etc." An example of this would be a student said that they had not been able to do their homework because someone in their family died. Without the computer, the teacher has to make a decision whether or not to let them turn it in late which can be hard and is just a small example. With this technology teachers would be able to tell whether they are lying or not. The reason the student could get away with it, if this technology was not being used, would be that they could sound serious about it and they could have a serious look on their face because "most human communication is nonverbal." These computers could tell if that person is actually lying by calculating "muscle clues."