Occasionally teachers may have some time left over after the normal lesson plan has been finished. Instead of allowing students to waste time by socializing, have some filler activities that will review and reinforce what has been taught in the class.
Our Egghead has provided a list of filler activities, including games and trivia, for high school and middle school Literature, History, Geography, Science, and Mathematics classrooms. Please follow the link below to eHow:
High School Filler Activities eHow.com