ON A TYPICAL morning at Chester Elementary School, a small rural school of 127 students in grades PreK through 5 in the foothills of the Berkshires, the work of education looks much like it does anywhere else. This is my school, where I have the privilege of being the principal. I greet every student by name at the door each morning when they arrive, mostly by bus, some after long rides along winding roads. Classrooms are full of life, teachers …