People use a variety of plausible, but uncertain inferences to answer questions about which their knowledge is incomplete. Such inferential thinking and reasoning is being incorporated into the SCHOLAR computer-assisted instruction (CAI) system. Socratic tutorial techniques in CAI systems such as SCHOLAR are described, and examples of their…

Developments in three areas relating to interactive capabilities on the SCHOLAR computer-assisted instruction (CAI) system are reported. The first section discusses the implementation of two presentation strategies in SCHOLAR -- the Tutorial mode and the Block-Test mode -- and offers a comparative evaluation of these two modes using high school…

Research and development work on the use of the SCHOLAR autotutorial, online system is described. Inference strategies used within the system are deductive, negative, and functional in character. A graphics package allows user to ask questions and give commands in English to control SCHOLAR's map display capability. The examples shown are for…