Clickers, or personal response devices, have been taking hold on campuses across the country. Their use is shifting education away from the age-old practice of putting a professor at the front of a room to lecture to a passive audience. Instead, it forces participation from all students and encourages peer learning. Samuel D. Hodge, Jr., professor of legal studies in Temple's Fox School of Business, started using clickers more than five years ago in hopes of captivating the elusive attention of the college student. "They're used to getting visual stimulation," said Hodge. "Not only do they want to be educated, they want to be entertained."