text: The computer knows when you're happy or sad. A classroom computer could recognize when a student is becoming confused or bored. By weighting the diffrient units, the software can even identify mixed emotions. They even indicate the difference between a genuine smile and forced one. This technology is very useful. This technology is somthing you must have in a classroom.     The use of this technololgy towards students in a classroom, I think it is a good idea. If teachers found out how we feel or our face expressions to show them how we are feeling that day. I feel like it's a great idea, that way teachers and staff know if they are having a bad day or are in need of help. Some students in school can be stressed even over homework in the classroom or at home. Reading students facial expression and there feelings is good for the students and teachers, because the teachers can help there students and they can be happy.