Sometimes it is a teaching style, and sometimes it is a dysfunctional teacher/situation.
I remember my DD had a Adjunct Spanish Prof who would take weeks to grade assignments/etc. How can you know how you are doing unless you get feedback? She talked to the prof and then talked to the Dept head and then the prof started grading in a timely fashion.
I also remember when my other DD was taking IB German Ab Initio…the beginners and intermediates were put in with one teacher. My DD was given a worksheet to do and it would take her about 5 min to do. Then she would sit around while the teacher taught the intermediates. She would ask for more work, and was told to “read these German magazines”…except she couldn’t read German. So when my HS student was complaining that they weren’t being taught or didn’t have any work to do, I talked to the Principal and a second teacher was added. THe teacher did get mad because i didn’t talk to her…but I felt that my daughter had already asked and she was set up in a no-win situation that she couldn’t solve.
The federal govt/accreditation bodies have requirements on college courses…they need to have a minimum number of contact hours, they can’t be correspondence type courses. So the suggestions in my previous post help the OP get to whether or not they understand all of what might be going on.