text: This is also a good idea for teacher as well to see if there students are having a hard time or if they are upset about something. Some kids don't like to talk about what they are upset about unless someone ask them first. The face scaning decive will be a helpful thing to put in a classroom. plsu while your face is geting scanned you have to make a happy face therefore the experiment will make you slightly happy. I think they should start putting these in the classrooms now.