text: This technology does sound helpful in the fact that it could gauge the state of mind of a student and help a teacher adjust their teaching methods to accomodate and keep their students students on track. The article did state that the techonology could identify when a student is "confused or bored" and then "modify the lesson" to keep a student engaged. In this way, the technology is useful in the fact that it adapts to the needs of the student. But what can this program do that a teacher's survey could not? By the way the article talks about how a "home PC can't handle the complex algorithms" and about how complex the system is, it makes people wonder just how much this system would cost and how complicated it would be to enstate said system into a classroom. Compared to a quick survey done by a teacher who asks their students how they feel about their methods of teaching, it is seen how the system would be a waste of recourses and money. Therefore, although this system is useful in the fact that it can gauge the emotions of the students, it is not much more useful than a teacher who can do the same thing by questioning their students on their preferences and ideas.