With summer coming to a close, Salon's D. Watkins is thinking about back to school season and considering what makes good teachers great. In today's Salon 5, Watkins, who is a teacher himself, gives the five best lessons teachers can learn before stepping back into the classroom. Watkins believe teachers can change lives. His lessons cover everything from being open to students' cultures to reminding teachers they are there to serve the students. Watch the video above to learn more and hear Watkins' tips for teachers.