Dear professor, I am Chang [a pseudonym], an international student of your research class. I’d like to ask if I can use a recorder (only voice) in your class, because I’m afraid that I can’t understand class content at once.
This was an e-mail that I received before the first day of class, exemplifying the anxiety international students may experience as undergraduate/graduate students in a foreign country. My response to the student was to give it a try first and see if he could understand the course content or not. I also tried to comfort him by saying that all class materials would be posted on Blackboard. Guess what? The student did just fine in my class and never needed to record lectures.