text: It's safe to say that over time school subjects increase in difficulty. With lessons getting more complex over time, it's up to the teachers to help teach the students the best they can and answer any questions they might have. Most students's questions will often vary depending on how they are and how well they understand the subject. They will have individual questions, and in a classroom setting it makes it easier to pick out the student and answer the student's question and explain it. With an online class, that gets trickier. To do an online class, it would most likely be come kind of large video stream; with a teacher on a video and a couple hundred students tuning in online. This makes it immensely more difficult for the teacher to single out a student with a question. Look at a subject such as math. In a classroom setting, if a student had an issue with one of the math problems, all they would have to do is raise their hand and the teacher would come over and show them how to do it on a white board. With an online class, you would not be able to do something like that. A glaring issue for the online classes versus the physical classroom.