As the school year winds down, it’s an apt time to reflect on those teachers who go above and beyond the call of duty. You know who they are. They’re the teachers who are willing to come in before school, and stay after the final bell rings, to work with kids who didn’t quite grasp a concept during class. They’re the teachers who are champions for their students as much as they are purveyors of information. They’re the teachers who wake up something latent in students that translates into a lasting impact. They’re teachers like Sean McComb.