Teacher Control in Computer-Assisted Instruction

Abstract

To many persons, computer-assisted instruction (CAI) connotes automated programmed instruction (PI). This exemplifies the authorcontrolled mode of CAI, in which PI, suitably generalized, is mediated by the computer. This mode is used effectively for tutorial instruction. In another mode of CAI, the interaction between student and computer is under control of the student, perhaps within bounds set by an author. This student-controlled or discovery mode is most often seen in problem solving and in simulation, such as the ersatz laboratory. A third mode, teacher-controlled CAI, is assuming increasing importance. Here the teacher intervenes in the student-computer interaction, generally with an entire class watching one dialog. In the hands of a skillful teacher, this mode offers most of the pedagogical advantages of the other two modes and costs far less.