An Internet based program that works from your computer or from your iPad or Droid. This is the teacher version which when connected to student devices works like a "clicker" service with which you may conduct a written or oral quiz. Students may download the "student" version or go to the web page and log in.
RH: I have only experimented a few times with this app. So far I feel that it has great potential. Students may use their personal devices to give you feedback or you can set up individual tablets on the back shelf and have students participate in that fashion. You can choose to ask one question at a time or set it to run at student pace.