i>clickers allow instructors to ask questions and gather student responses during a lecture. Clicker systems are also commonly called Classroom Response Systems, or Audience Response Systems.
In i>clicker systems, each student uses a device, an “i>clicker”, that looks like a TV remote to answer questions posed by the instructor. Summaries of student responses can be shown in real time to both instructors and students. Answers are stored electronically for later viewing.