text: Because as you can see in the video even if were not allowed to use our phones there are some that tend to use it anyway. Even while the teacher is teaching but most uses books to cover up their phones or wait until the teacher isn't looking or walking down the hall. I mean cell phones are really like teens drugs you can really get attached to it or just cant help yourself and you really have to text that person back. But me personally I don't really use my phone in school i might wait until gym while were in the locker rooms to text them back. But I'm not going to text during class unless its my mom and its really important and that's when i might just lift my book up and text away but other than that i keep my phone either in my book bag or my pocket.Yes I think that the technology to read the emotionanl expression of sutdents in a classroom is valuable. If a student is becoming bored or confused. This will then help teacher to undersand a student and be able to help them so that they will undersand what they are learning in the classroom.