[bluesign]

This is maybe good on one on one lecture, but when situation is one to many, it is better to assume the part you don’t understand as a fact, and try to move on, then later try to figure out off lecture time.

Unless there is a Q/A time, interruption of lecture for sure not good for the whole group.

[ubercow13]

Why? The point you’re confused about might be something that the lecturer genuinely didn’t explain properly, omitting some detail. I never remember being annoyed or feeling like my time was being wasted by questions in lectures, even when I knew the answer. Many times the questions clarified points I didn’t understand as well as I thought I did until a well thought out question was asked. Other people asking questions in lectures was a huge net positive for me in my education.

I’ve even been in lectures with other professors watching where they will stop their colleagues to ask questions. In addition many of my lecturers would stop the class to ask us if we understood, and explicitly stated that they wanted to make sure we were following. This is even in lectures of 50+ students.