text: In schools we have many classes like Math, English, History and etc. But it would be nice to have a class about technology and have this technology in the class so students can learn how to use it and how it was made. Time bye time the students are going to know more of this technology and then this could work for the help of many students. Once they come in to class if you see them in a different mood the teacher can either send you to the office or she can do it her self to see what type of emotional expression does the student have. So this machine would be very good and it would help the school a lot with their students.