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This article examines the dynamic geometry package GeoGebra from the point of view of Euclidean Constructions.
Dynamic Mathematics with GeoGebra
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.
Journal of Online Mathematics and its Applications
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Creating Mathlets with Open Source Tools
Title Page
Author Information
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.
Abstract
Today's Internet provides a large number of freely available interactive materials for mathematics learning and teaching. Most of these mathlets are ready to use but not ready to be modified or extended. In this article we present a collaborative environment of open source tools around the dynamic mathematics software GeoGebra that gives educators the freedom to create new and modify existing materials in an online community. We describe how to do this based on design principles for multimedia learning and experiences from our work with teachers.
Technologies
This article uses Java (1.4.2 or later) and JavaScript for several interactive figures created with GeoGebra. Please install Java from www.java.com and activate JavaScript in your browser if necessary.
Publication Data
Published August 2007; article ID 1574. Copyright © 2007 by Markus Hohenwarter and Judith Preiner.