<font color="blue"> ( Oh my. What happened to summer vacation. ) </font color>
He may go to a year-round school. I know of some places that run several tracks -- each runs 9 weeks of class followed by 3 weeks of vacation. They offset the tracks so that the school is open almost year-round. While some kids are on vacation, others are in school.
Eveyone gets off for Christmas vacation and 5 weeks in the summer.
I wish they would run this type of system here.