1. GeoGebra Community & Future Zsolt Lavicza University of Cambridge, UK zsolt@geogebra.org Markus Hohenwarter Kepler University Linz, Austria markus@geogebra.org

2. GeoGebra Overview Short History Community Future

3. GeoGebra GeoGebras History

4. GeoGebra Computer Algebra Systems Derive Mathematica

5. GeoGebra Interactive Geometry Software

6. GeoGebra GeoGebra = Geometry & Algebra 2001/02 Masters Project Univ. Salzburg Version 1.0 April 2002 Tool for Analytic Geometry: points, vectors, lines, conic sections

7. GeoGebra Dynamic Worksheets Version 2.1 January 2004 Interactive web pages

8. GeoGebra Forum & Wiki Since 2005 15000 Worksheets GeoGebraWiki User Forum

9. GeoGebra GeoGebras Community

10. GeoGebra Visitors on www.geogebra.org Visitors: 20.000/Day or 600.000/Month Downloads: 10.000/Day or 300.000/Month From 190 Countries & Territories

11. GeoGebra GeoGebra in Numbers 10 Developers 38 Institutes 50 languages 120 Translators 15.000 Online Learning Objects Millions of Users in 190 Countries

12. GeoGebra International GeoGebra Institute Teacher training and support Offer workshops & support Material and software development Share free materials Research Encourage and coordinate collaborative research May 2008, First IGI Meeting in Cambridge, UK

13. GeoGebra Current GeoGebra Institutes more coming soon … www.geogebra.org/community

14. GeoGebra GeoGebra Events www.geogebra.org/events Individual Workshops GeoGebra Conferences Talks & Workshops at other conferences

15. GeoGebra Additional IGI activities Text books and online courses with integrated GeoGebra materials in e.g. Australia, Austria, Belgium, Chile, France, Germany, Hungary, Norway, Singapore, Taiwan, USA Book: Model-Centered Learning with GeoGebra: Theory and Practice in Mathematics Education Journal Special Issues: Mathematics, Statistics, Operation Research Connections On-line assessment: TAO (Luxembourg), WebWork (Rochester, NY), STACK (Birmingham, UK), GeoGebraTUTOR (Barcelona, Montreal) Work in developing countries: SchoolNet Africa, African Institute for Mathematical Sciences, SA Online journal: Connecting research and practice, USA, Canada

16. GeoGebra GeoGebras Future

17. GeoGebra Summer of Code Grant for GeoGebra to support 5 open source student coding projects in the summer of 2010 Philipp Birklbauer, Austria: Implicit CurvesImplicit Curves Sergio Rodriguez, Spain: Locus line equationLocus line equation Anjneya Varshney, India: GeoGebraTouchGeoGebraTouch Andre Eriksson, Sweden: GeoGebra3DGeoGebra3D Florian Sonner, Germany: LayoutManagerLayoutManager

18. GeoGebra Implicit Curves: f(x,y) = 0 Philipp Birklbauer, Austria

19. GeoGebra Locus Line Equation Sergio Rodriguez & Miguel Abanades, Spain

20. GeoGebra GeoGebraTouch Michael Borcherds, UK & Yves Kreis, Luxembourg

21. GeoGebra GeoGebra3D Andre Eriksson, Sweden & Mathieu Blossier, France

22. GeoGebra GeoGebraSpreadsheet George Sturr, California

23. GeoGebra GeoGebraCAS Full integration of a symbolic view in GeoGebra Dynamic updates of dependencies Easy to use starting from age 13

24. GeoGebra GeoGebraTube Material Platform Direct upload from GeoGebra Rating Comments Florian Sonner, Germany

25. GeoGebra GeoGebraMobile GeoGebra Applets should work on Smartphones iPhone, iPad, Android Gabor Ancin & Zoltan Kovacs, Szeged, Hungary

26. GeoGebra One Laptop per Child Project Szeged, Hungary

27. GeoGebra International GeoGebra Conference Hagenberg near Linz Austria 29 - 31 August 2011 Release of GeoGebra 4 GeoGebraCAS GeoGebraTube GeoGebraMobile

28. GeoGebra Thank you! Slides of this talk www.geogebra.org/talks www.geogebra.org/talks Markus Hohenwarter markus@geogebra.org markus@geogebra.org Zsolt Lavicza zsolt@geogebra.org zsolt@geogebra.org