It seems like there needs to be a way for a student to ask questions while in the case. The question could be answered by any of the instructors. I thought of an Intercom-like capability. The problem is that instructors won’t always be sitting in chat. Office hours were the old way to do it so I am not suggesting that.
I think of lectures where I would never ask a question but I had them. That was because it was public. Texting would suffice but I don’t know how we could make it instructor friendly so the instructor isn’t inundated. Certainly sending a question to instructor and TAs would be very helpful.