The use of technology being able to read emotional expressions of students is not valuble. It invades student's privacy. It's a likely chance that a student emotions will not change because of what the computer detects, and also some people may not like the idea of being so closely connected with a computer/ technology.

There are many times where you have probably witnessed a friend or person's face looking too calm or sad to you, and when you asked them what's wrong they tell you nothing. Eventhough when they tell you this you know something might be wrong. After a while you start to just let it go,respect their privacy and wait til they're ready to really tell you whats's on their mind. This applies the same way from a computer to a student. Some students may not want the computer to be invading their privacy and knowing what's wrong with them, they would rather keep it to themselves.

It's also a likely chance that a students emotions will not change just because the computer can detect it. What if the the students feelings are more deeper than how they feel about the work? a computer won't be able to change that. In the article the author informed that the FACS (Facial Coding System). will be able to detect on if a person liked an ad or not. Though that might be a swell idea most people don't always like being stopped by ads when they're trying to watch or read something they really want to.