Markus Hohenwarter is the creator of GeoGebra and is currently a visiting professor at Florida Atlantic University. Judith Preiner is PhD student in mathematics education. Both are currently working in the NSF MSP project Standards Mapped Graduate Education and Mentoring at FAU.
In this article we introduce the free educational mathematics software GeoGebra. This open source tool extends concepts of dynamic geometry to the fields of algebra and calculus. You can use GeoGebra both as a teaching tool and to create interactive web pages for students from middle school up to college level. Specifically designed for educational purposes, GeoGebra can help you to foster experimental, problem-oriented and discovery learning of mathematics. We will illustrate the basic ideas of the software and some of its versatile possibilities by discussing several interactive examples.
Published March 2007; article ID 1448. Copyright © 2007 by Markus Hohenwarter and Judith Preiner.