text: Next, there would be no real interest in the class if they have something in the front of the room detecting them. A class should be informational and help a student learn, but also be fun and make them interested. Students get confused, that's what a teacher is for, to help them understand it when they get confused over something. Details from the passage to support this would be, "A classroom computer could recognize when a student is becoming cofused or bored". A student might understand the material, but it won't do much good if they hate the class because it's so dreaful, even if they might not show it.