This is the summary of a presentation given at the Joint Mathematics Meetings, January 10-13, 1996, Orlando, Florida.

Of 539 engineering major students in eight sections of Calculus I, two sections randomly chosen (totalling 135 students) were provided with tutorial supervision using Mathematica in XTerminal graphics labs for one hour per student per week in addition to their normal one hour tutorial. All sections had a common final exam.

Assignments and interactive illustrative examples were provided on-line over the network. Questionnaires were provided to supplement the normal Faculty evaluation forms. In both 1993 and 1994 there was a tendency for the two computer-supported sections to have higher results, scoring significantly more A's and no failures.

Christopher T. J. Dodson, University of Toronto