text: Although this would be really great, many people could say that not all students have the same feelings about things so if a teacher changed his or her lesson based on one student, then some of the other students might not be as engaged or delighted. It wouldn't be right to do something based on one student rather than twenty-five. If a few students are very engaged in this lesson and they are paying attention and getting something out of it but other students are confused, if the teacher decides to make a change for the confused students, the students that were engaged in the lesson may become unengaged or bored. That would be the downfall of using this sort of technology.