text: A computer can also tell when a person is becoming confused with what they are learning. The computer can detect the confusion and change the lesson to make it easier to understand. For example, " A classroom computer could recognize when a student is becoming confused or bored," Dr. Huang predicts. "Then it could modify the lesson, like an effective human instructor" (Paragraph 6). Not only does it make it easier for that student to better understand the lesson, but it makes it easier for the teacher too. The teacher wouldn't be able to detect exactly how the student is feeling with what they have, and ocasionally the students don't feel comfortable enough to let the teachers know.