Teachers need the support of other teachers to help them improve everything from classroom management/discipline, to enlightening students academically, to stimulating their intellectual and emotional growth.
While serving on other committees, I had been taught the “yes, and” principle. To allow myself to entertain reasons why someone else’s ideas had merit. Could ideas be made even better with a little tweaking?
Mastery means a student is fundamentally changed as evidenced by differences in perspective and behavior. It is not achieved quickly but requires soak time and reflection.