But the best time, for me at least, to ask questions is during the lectures. That's when my mind is working to understand the material, so that's when I am most

But the best time, for me at least, to ask questions is during the lectures. That's when my mind is working to understand the material, so that's when I am most likely to have questions. The same process happens during labs and the like. I also need to be able to ask questions during lectures because if I fail to understand something it may negate the entire value of the lecture.