ABSTRACTS Computer-Assisted Instruction : The Application of Theorem-Provin g To Adaptive Response Analysis Adele Goldber g Abstrac t In a CAI system for teaching elementary mathematical logic, in order t o provide tutorial advice similar to the suggestions a human tutor might give , a theorem-prover is employed as a proof-analyzer to generate appropriat e dialogue with students who need help with a proof . It is shown that the heuristically programmed theorem-prover, by embodying techniques thought t o be used by the students, constructs derivations for expressions in th e elementary theory of Abelian groups within the constraints on rule usag e imposed on these students . To demonstrate its capabilities, the theorem prover was tested on a list of theorems and problems chosen arbitrarily fro m a standard curriculum in elementary algebra . The proof-analyzer mocks th e adaptive behavior of a human tutor ; it can determine relevant hints when a student requires help in completing a solution, and can encourage th e students to discover diverse solution paths . The proof-analyzer i s incorporated in a new instructional system for mathematical logic, an exampl e of a "student-oriented" CAI system which emphasizes active participation o f the students with the computer by providing methods by which a student ca n initially specify or extend the axiomatic theory he is studying, while stil l retaining the error analysis and teaching facilities of an interactive proof checker . (Institute for Mathematical Studies in the Social Sciences , Stanford University, Technical Report No . 203, May 25, 1973 ; an d doctoral dissertation, University of Chicago . Available fro m University Microfilms . ) ® â¢â¢â¢â¢â¢â¢â¢â¢â¢â¢sâ¢â¢â¢â¢â¢â¢osâ¢â¢ ⢠A-D Conversion Assistance Needed Patrick Harrison of the Hope College psychology department need s assistance from persons having experience with analog to digital dat a conversion . His present research efforts are focused on habituation studie s which require the conversion of a set of physiological measurements (analog ) to suitable digital input . Hope College would also like information o n multivariate regression programs and factor analysis programs which will ru n on a 16K IBM 1130 machine . In addition to these needs, Harrison reports that he is presentl y developing a set of programs to be utilized for psychological analysis . Hopefully these will be complete and documented by the end of the summer . Contact : Patrick Harrison, Department of Psychology, Hope College, Hollan d MI 49423 . -Item from On-Line, March 1973 . ACM SIGCUE Bulletin v7 #3 July 1973
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