1. GeoGebra Dynamic Mathematics for Schools Markus Hohenwarter, Judith Preiner Florida Atlantic University www.geogebra.org www.geogebra.org

2. GeoGebra What is GeoGebra?  Dynamic Mathematics Software  For Learning and Teaching in Schools  Geometry, Algebra and Calculus  Open Source www.geogebra.org www.geogebra.org

3. GeoGebra GeoGebra =GeometryAlgebra+ Geometry & Graphics Window Algebra Window

4. GeoGebra Why use Technology? “Technology is essential in teaching and learning mathematics; it influences the mathematics that is taught and enhances students’ learning.” (NCTM Principles and Standards, 2000)

5. GeoGebra Technology can Enhance Learning Visualizing students can “see” abstract concepts Visualizing Representations students can make connections Representations Experiments students can discover mathematics Experiments

6. GeoGebra GeoGebra’s Web Export Every GeoGebra Construction can be exported as a Web Page (html) Dynamic Worksheet Examples:  Theorem of Pythagoras Theorem of Pythagoras  Center of a Round Table (ggb)ggb

7. GeoGebra Why Open Source? Available in Schools and at Home Collaboration  GeoGebraWiki – Pool of Shared Materials GeoGebraWiki  User Forum – Users help Users User Forum  International Community: 35 Languages Expandable by using other Open Source Libraries

8. GeoGebra Differences to Sketchpad / Cabri No license fees Truly Platform Independent (Java) Unlimited and easy Web-Export (unlike JavaSketchpad, Cabri Java) Direct input of Equations, Coordinates and Commands Integrated Computer Algebra System Open Architecture: JavaScript Interface (Example: Fractions)JavaScript InterfaceFractions

9. GeoGebra Future Plans Make it Easier, Easier, Easier! Spread Sheet Window Symbolic Calculator Window (CAS) Extended Web-Export Interactive Exercises, Worksheet Modules

10. GeoGebra

11. Web Addresses GeoGebra www.geogebra.org www.geogebra.org GeoGebraWiki – Pool of free Materials www.geogebra.org/wiki www.geogebra.org/wiki GeoGebra User Forum www.geogebra.org/forum www.geogebra.org/forum

12. GeoGebra Markus Hohenwarter © 2001-2007 www.geogebra.org www.geogebra.org GeoGebra