According to the New York Times article, "These typically have about 25 students and are run by professors who often have little interaction with the students" ("Trouble"). There may be little interaction with the online course, but it really depends on the student. This doesn't just apply to online classes, but also includes traditional courses. As student-professor ratios continue to increase, one-on-one interaction time is decreasing or not occurring at all. With the increase in students, the professor will have to teach a large group of students, and will not have the opportunity to meet his students personally. There is a difference between the two. Online courses take place online and this gives students an advantage because a student can use an online chat service like Skype to talk to their professor personally. Not only can students make a private call, but they can also set up a group call and have a mini lesson with the professor. Online meetings are more convenient because they can hold the meeting anywhere with the Internet, but with a traditional course they can only meet during office hours. Online students have more teacher time and can get more out of it because more students can be invited to chat or chat. In comparison, both courses face an interaction problem, but with online courses the professor has more opportunities to meet the students. The professor can get more out of meetings by inviting more students to Skype