1. GeoGebra History 2001-2008 Markus Hohenwarter www.geogebra.org www.geogebra.org

2. GeoGebra 2001: The Idea Course on TI-92 calculator at University of Salzburg Dynamic Geometry Software: easy to use Computer Algebra Systems: powerful and versatile

3. GeoGebra 2001/02: First Prototype Master’s thesis in Computer Science & Mathematics Education finished in March 2002 European Academic Software Award 2002 Ronneby, Sweden (while teaching in high school in Salzburg)

4. GeoGebra 2004-06: PhD project PhD project in Mathematics Education on applications of GeoGebra for high schools Funded by Austrian Academy of Sciences from Feb 2004 to Jan 2006 2004: first translation to Spanish German awards 2005: User Forum & GeoGebraWiki Feb 2006: PhD finished

5. GeoGebra

6. 2006: Florida NSF Math & Science Partnership Florida Atlantic University & Broward County Schools (2004 - 2009) PIs: Heinz-Otto Peitgen, Richard Voss Master’s program for Middle School Mathematics Teachers at FAU Focus on Math Content Knowledge & Technology Integration into Teaching

7. GeoGebra Visitors on www.geogebra.org

8. GeoGebra World Wide User Community 39 languages 194 countries 300,000 visitors per month

9. GeoGebra Status Quo – What’s missing? Not enough training Not enough support for teachers new to technology Limited research on the impact of GeoGebra for teaching and learning of mathematics

10. GeoGebra 2007: International GeoGebra Institute Teacher Training and Support IGI provides free workshops and materials for teachers and future GeoGebra trainers to create and support a self-sustaining community of users Research and Development IGI continues to enhance GeoGebra’s capabilities and ease-of-use, based on extensive feedback from a wide variety of teachers www.geogebra.org/IGI

11. GeoGebra ww.geogebra.org/msp-ws

12. GeoGebra US Workshops in 2008 6 GeoGebra Workshops for NSF MSPs  May: "PROM/SE" in Cleveland, Ohio (1 day)  May: "Stark County MSP" in Canton, Ohio (1 day)  May: "Puerto Rico MSP" in Puerto Rico (1 or 2 days)  June: "PRISM in Statesboro" in Statesboro, Giorgia (2 days)  June: "Indiana University - Indiana Mathematics Initiative Partnership" in Indianapolis, Indiana (1 day)  June: "Rocky Mountain Middle School MSP" in Denver, Colorado (4 days) About 15 Workshops for ED MSPs

13. GeoGebra US GeoGebra Map