text: The third reason this technology would be useful in a classroom is so that the teacher could act differently according to the person's mood. If a teacher was planning on having a debate in class but then realized that some of their students were already angry and flustered they might change the plan. The students would go into the debate angry and it would only make them angrier resulting in the class getting out of control or hurting a student's feelings. If a student comes in and the teacher notices they are sad and upset they won't be as harsh on them. If the said student had a missing assingment that had to be turned in the teacher could wait until the next day or aproach them in a kind and understanding manner. If the teacher hassaled the student about a missing assingment when already upset it could escalate the situation to an uneeded extent.