Dan Priest's alarm goes off at 6am every morning.

A bite of breakfast, a scruffle of his 2-year-old son's hair and a kiss for his wife and he is out the door.

As soon as the front door shuts, Dan's mind is on his 33 other children who will be beaming to see him when he arrives at school for work.

On the car ride to school, Dan makes mental lists of the many things on his agenda that day, and crams in some last-minute day-planning that he will need to put onto paper when he enters the classroom at