It's no ordinary Thursday for Marvin Redpost and his class...<br /> <br /> It's "hole day," and even Mrs. North and Principal McCabe are wearing their very worst clothes. It seemed like a fun idea that morning, but now they're expecting company. The president -- of the United States! -- is on his way. And there's no time to change! Marvin must do math on the blackboard with television cameras pointed at him. And the day is just beginning!