Rate the following essay on its writing, argument, and language skills:
The use of this technology to read the emtional expressions of students in a classroom is valuable for many reasons. Some might say its envasion of privacy but think about it, it can help the teaccher see if the student is understanding something or not. To see if the student is upset and the teacher could help out the student a little more.

The computer constructs a 3-D model of the face which reads all 44 major muscles. " Eckman has classified six basic emtions- happiness, surprise, anger, disgust, fear, and sadness...accociated each with charateristic movements of the facial muscles." The computer can read the facial expressions and sort them into differnt emtions. The computer can also classify an emtion even if the person isn't really showing it. " Even though individuals often show varying degrees of expression." This shows that even if the person tries to hide their emtion the computer knows the persons emtions. Which could be a good tool for when the teacher doesn't know if the student is feeling well or if the student isn't understanding something.

Even us somtimes can't tell what a friend is feeling because we might not be able to sort their facial expressions out. " Most of us would have trouble actually describing each facial trait that conveys happy, worried, ect." Sometimes we don't know if the person is feeling fear or happy because they are somewhat smiling, and the computer can tell because of the persons facial muscles. " Image a computer that knows when you're happy or sad." The comupter can help with how things pop up on the comupter. If an ad pops out and you smile another similar ad might pop up later on. Same thing goes for if you an annoyed face when an ad shows up so that the next time a different type or something different might pop up.

The computer can also notice when a smile is real or if its being forced. " In a false smile, the mouth is streached sideway using the zygomatic major and a different muscle."

The muscle that is used when the smile is being forced is one of the major muscles which is why it is easy to know if the smile is real or it's forced. "These muscle clues are sometimes used to pot when a "smiling" politician or celebrity isn't being truthful." Even without the computer people can see when a person is faking a smile.

To finish off, yes I do think that having these kind of computers at schools would be helpful. For the fact that it can help teachers change some of their lessons so that some students who are confused can understand that lesson. It can also help the teachers to know if a student is having a good or bad day so that they can help that student out so that the student can learn what they have to that day.

Score: 4