Today's classrooms are much different from those of yesterday. The increased diversity of learners, students' familiarity and attraction to technology, and the improved availability of technology in education have made it increasingly possible for teachers to use various forms of technology in instruction. The responsibility for addressing these issues and meeting the needs of all students lies with the classroom teacher. In this article, the authors describe how they use and incorporate TI-Nspire, a new technology that combines many different capabilities of many technologies--The Geometer's Sketchpad, Microsoft Word, and Excel--in one tool, into classroom instruction. Their use of the TI-Nspire as a demonstration tool immediately sparked interest--students were eager to learn how to use it themselves. Here, the authors present an activity as an example that can be adapted for middle school students, second-year algebra students, and calculus students. This activity was designed for student use and exploration, but activities can be designed solely for teacher demonstration as well. (Contains 6 figures.)