This is a collection of Pascal programs that were developed for a 1986 National Science Foundation-sponsored high school teachers' summer workshop. The programs can be used as a means of extending or enriching textbook material in either high school mathematics or Pascal courses. Some suggested uses are: (1) teacher demonstrations in mathematics classes; (2) programs for student use in mathematics classes; and (3) student assignments in a mathematics or Pascal course. The topics which are addressed in the Pascal programs come from a variety of mathematical areas: algebra, trigonometry, discrete mathematics, number theory, mathematical modeling, and numerical algorithms. Generally speaking, the programs are quite short and the programming level is appropriate for the average high school student who is enrolled in a Pascal course or who has completed such a course. The appendix contains standard types and procedures used by graphics programs written for use with Turbo Pascal on the IBM PC, including Cleargraphics, Graphicson, Graphicsoff, Plotpoint, Smoothplot, Drawline, PlotGeneral, DrawlineGeneral, DrawCircleGeneral, plotaxes, ConvertToPolar, and Rotate. (YP)