Are you about to become a teacher? Perhaps you will be an adjunct lecturer at your local college. How wonderful. Teaching is a joy and a great opportunity for you to learn.
I've taught for 15+ years at a variety of schools, colleges and universities. Here's what has worked for me:
1. I take notes during class — pausing, if I must, during whatever is going on. While the students in front of me are the first priority, I must continually improve the class for future years. So I tell the current students that this is our goal: to improve the class for the next class. I poll students (using SurveyMonkey) on what works and what doesn't. I write down every constructive method or comment for future use, so that I don't come back after vacation wishing I had taken better notes.