EXPLORING SIMPLE CHEMISTRY THEORY AT A CRT Ralph M. Deal Department of Chemistry, Kalamazoo College I19 Most computer programs used in chemical education have been designed to allow rapid manipulation of data or elaborate calculations that would be sheer drudgery if done manually. A few are designed to teach certain specific concepts by a CAI tutorial method in which the computer keeps control while the student progresses by some route through a generally preset path. Some simulate a laboratory experience, one the students might do themselves with more time and equipment or one that is inaccessible because of cost or scale. This program allows a student to explore a particular model for the electronic structure of molecules, one like the Hueckel model usually It allows the method applied to the pi electrons of conjugated molecules. itself to be explored in situations that are in some ways like molecules or atom-molecule toarbitrary combinations. It also allows the model to be applied planar geometries. Development of PEV, the PIL Eigenvalu 9 Program I spent the winter quarter of 1971 at the Center for Research on Learning and Teaching at the University of Michigan in Ann Arbor, Michigan, where I wrote
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