Our classrooms are windows. Children's views are shaped by the pictures we paint, the opportunities they envisage. We are responsible for the window's upkeep: treat it with consistent care and attention and it will open seamlessly to worlds that are beyond their wildest dreams; leave it untouched and those worlds will remain forever out of reach.
The window is open to the world to view, some outsiders simply point out what is missing from times they spent inside. Others like to castigate and deride. Most smile knowingly, remembering with fondness the people who opened windows for them. People like us.