The reading passage contends that online courses positively affect students. On the other hand, the lecturer brings up several points that contradict the reading passage.
First, the lecturer argues that online classes do not provide urgency or seriousness to the classes. Therefore many students might be procrastinated or drop the courses. Moreover, it is hard to test fairly on line since the professor can not prevent students from cheating. This casts doubt on the reading, which states that online classes are convenient due to a easy access.
The other main point made in the lecture is that online courses do not offer active communication. To be specific, the professor could not perceive a lot of questions from students all the time. So, the students who don't get a reponse promptly would discouraged and stop asking. Also, the interaction or the discussion among stuents are rare. This refutes the reading passage's argument that online lectures gurantee question and answer time and discusstion time by message board and e-mail.