My AVID teacher had all of her students sign up with searchandgive.  When they went to the computer lab, after finishing an assignment, they were allowed to access searchandgive.  She told them that as long as they were at school, all points accumulated had to be given to the school, but before they left for the summer, she would show them how to earn points for themselves.  She mostly has 8th graders so they will be leaving our school in June.