Classroom response systems, also known as clickers, are small remote control-like devices that allow students to anonymously answer multiple-choice questions posed by the instructor during class. Each student has a clicker to transmit their response, which the instructor can then view the aggregate results. The purpose of clickers is to promote active learning and assess student understanding of new concepts. Studies show that clickers increase student engagement and participation. However, effective use of clickers also presents challenges such as taking class time and requiring instructors to write high-quality multiple choice questions.