This learning activity will provide an introduction to mechanical and materials testing. Using Hooke's law, students will calculate the stiffness of springs and think about issues of force, compression, and tension. This activity is intended for high school and introductory level undergraduates. The document is available to download in PDF file format.

This page from West Texas A&M University provides help for students in college algebra, intermediate algebra, beginning algebra, math for the sciences, and GRE mathematics preparation. Each area contains a number of individual tutorials that increase in difficulty. The GRE prep section includes two practice tests. This resources is free and available to everyone.