The use of computers is pervasive in education at both the secondary and university levels. Learner-oriented computer programs have the potential to motivate students to learn mathematics. One such computer program is Microsoft Excel, which for many years has been embraced by educators as the ideal platform for providing students with hands-on activities that enhance their learning. By design, Excel (or spreadsheets in general) lends itself to transparent problem formulation and minimal programming requirements.
In this chapter I will present several spreadsheet applications that I have devel-oped over the years. The applications are aimed at introducing concepts in the teach-ing of mathematics at the secondary level and introductory calculus as well.