text: I believe that students really need to leave there phones at home because someone might call in the middle of class. or a friend might text you in the middle of class also so students leave your cell phones at home..Are you for or against the value of using this technology to read students emotional expression? No, I do not believe we as a whole should be able to use this. The reason why I believe this should not happen is because everyone is intitled to their own opinion. The fact that a computer is able to distinguish this type of information is very scary.