"John Mahoney presented the project that his pre-calculus students do at the end of the course. It involves taking digital photos of students hands and printing them (via Sketchpad) on top of a pair of coordinate axes. Students then compute equations of the lines in their own hands. Pre-calculus students are required to use a variety of different types of functions. This project helps students review the properties of polynomials, exponential, logarithmic functions and their graphs. If this project is used with Algebra 1 students, they would use linear and quadratic functions. An article based on this Project has been accepted by the Mathematics Teacher for their Activities section. "