**Math lessons using hypercard
stacks:**

Functions - an excellent tutorial for teaching the concept of functions. It contains examples and non-examples of functions (as sets of numbers, graphs, and real world situations). A function machine and the vertical line test are illustrated to help students visualize the concept. A thirteen question assessment item (with questions that are randomly generated) is also provided.

Geometry and Art - a great instructional program divided into the following categories: lines, triangles, quadrilaterals, more polygons, circles, and problem solvers. The stacks contain clear descriptions and graphics with real world pictures of each type of geometrical object. Sample assessment questions are also given in the "problem solver" section.