text: Well this is why i think the use of this technology is valuable. hoefully we will have this someday i think that it will be really helpful and usefull for teachers i think they will use it a lot to find out how students are feeling or their emotions.                                           Limiting car usage can actually be effective believe it or not. While limiting your car usage you would be saving money, getting more exercise, and not polluting your environment as much as before.