text: While people think they can use their phones and drive, it's not the smartest idea. Crashes, traffic backups, and fines are all outcomes from using them. It puts not only you in danger but others as well The text or call you miss is not worth what you could pay. The payment could range from money you may not have, or even your or somebody else's life. There are even many commercials talking about this very topic with the simple slogan "It Can Wait".         The use of this technology in a classroom would be useful because it can help teachers identify how a student is feeling, if the are confused, and if the need help. For example," a classroom computer could recognize when a student is becoming confused or bored," Dr. huang predicts. " Then it could modify the lesson, like an effective human instrucuture." This is really helpful to some students because when taking an online lesson some of them might be comfused and the teacher is no there to help. So the computer can take these facial expresions and modify the lesson so you could undestand it better. This also follows along if a student needs help with the lesson, the computer could see you are having a hard time and t to help you by changing the lesson.