Through the generosity of a benefactor, I had the hardware and software purchased and made available through Bob Cotter in Instructional Media Services. The whole package is quite portable. The polling device and 30 keypads come in a suitcase-sized carrying case. A laptop computer and a projector round out the needed equipment. I have taken it on the road and a pull or push, two-wheeled cart is sufficient even for me to move it about.
Students preparing presentations for class can also utilize it with minimal secretarial help.
First, of course, one must plan what one wants to evoke from the audience and what series of questions will lead to the depth of discussion which you hope will evolve. The device allows a range of possible responses, so a variety of questions can be asked. Or, questions can be multiple choice with up to 10 alternative responses. I find that a case or scenario is best presented in print because of the range of reading speeds in a class. Then, I have the questions on the software.