I wonder if it is appropriate for professors to ask their students in class to type notes (in latex whatever) for the classes they are teaching and if there is any "elegant" way for students to turn down such request of professors they are taking classes with.
There are several specific scenarios that I am interested in asking about:
Professor asks students to take turns to type the notes for the classes and the notes may be used for publication under the professor's name (with students appearing in the acknowledgement in some way), and professor pays students for doing that.
Professor asks students to take turns to type the notes for the classes and the notes may be used for publication under the professor's name (with students appearing in the acknowledgement in some way), and professor does not pay students for doing that.
Professor asks students to take turns to type the notes for the classes and the notes is just a shared free document for academic purpose, and professor pays students for doing that (simply as an act of kindness).
Professor asks students to take turns to type the notes for the classes and the notes is just a shared free document for academic purpose, and professor does not pay students for doing that.
Which of the options above are appropriate/inappropriate (and why)?
Since if the students are enrolled in the class and it might be hard for them to turn down the professor's request since their grades are "controlled" by the professor (one more question: is it appropriate for professors to make notes-typing a course requirement?), or simply that students might meet professor everyday and there might be invisible pressure for students (especially for graduate students). I understand this must be some grey area in university teaching but it seems to me it is also very common in the graduate level (especially for special topics) courses (but I haven't seen any professors paying students for doing that).
By "publication" I mean publishing the notes as a textbook or monograph to publishers like Springer, APS, etc, profit or nonprofit. And as a consequence the public have to spend money to get access.