Then we wouldn't be 10-month employees, and you'd have to change that and pay more.
Year-round school with no holiday breaks....good luck getting rural southerners to buy into that one. They'd call it unamerican. Move to Japan.
Plus moving all PD into 60 hours (7-8 working days) in the summer would be an admission that it's busy work. Theyre sprinkled throughout the school year so that teachers can take each afternoon's invaluable training and apply it in the classroom.