This invention relates to a system in which members of an audience may communicate with an instructor, lecturer, moderator, etc., either in response to questions, to express opinions, or the like.
It is a continuing goal of educators to improve teaching effectiveness and capabilities, but in order to determine whether improvements are being realized, it is necessary that some means of evaluating teachers be provided. Various systems have been suggested for doing this with such systems typically including apparatus for enabling students to communicate responses, opinions, etc., to the teacher during the teaching process. It is felt that such "immediate feedback" operates to provide the teacher with a fairly accurate student opinion of the effectiveness, clarity, etc., of a given piece of instruction. One system for enabling such communication is described in Littauer, R. "Instructional Implication of a Low-Cost Electronic Student Response System", Educational Technology, October 1972, 12 (10) 69-71. As is noted in this reference, there are other commercially available student response systems but such systems often times are quite elaborate and costly.