This 7 minute audio recording from NPR distills what physicists figured out about lecturing...not effective.  It's the data that will give you tons of info you may need to make your argument work.Lecturing has never been an effective teaching technique, and now that information is everywhere some say it's a waste of time. Now, physicists have the data to prove it. But efforts to lose the lecture encounter resistance — sometimes from students.  What does K12 have to learn from this professor?