A middle ground is just to jot down a few words when something is unclear, just enough to let you know what you need to go back and review.
Not all professors want to take questions during lecture, it works fine in small classes but it can be quite disruptive in a large lecture class when you have a sylabus to stick to in a fixed number of lecture meetings.
Not all professors want to take questions during lecture, it works fine in small classes but it can be quite disruptive in a large lecture class when you have a sylabus to stick to in a fixed number of lecture meetings.