1. GeoGebra Dynamic Mathematics for Schools
Free, open-source dynamic mathematics software joining geometry, algebra, and calculus

2. GeoGebra – www.geogebra.org
- Geometry, algebra and calculus package
- Runs on every computer and is available in 39 languages
GeoGebraWiki -
- Free pool of dynamic worksheets developed by teachers
GeoGebraForum -
- Supportive and enthusiastic user community
International GeoGebra Institute -
- Offers free training for teachers
- Issues GeoGebra certification
- Conducts research
Contact
- Markus Hohenwarter, USA:
- Yves Kreis, Luxembourg:
- Zsolt Lavicza, UK: