Extensions or Apps Offered by www.geogebra.org
Crx4Chrome includes 2 extensions from the developer www.geogebra.org.
GeoGebra Classic crx 6.0.838.0 for Chrome
About: Apps bundle including free tools for geometry, spreadsheet, probability, and CAS...
GeoGebra 5 Beta crx 4.9.277.1 for Chrome
About: GeoGebra is free dynamic mathematics software for all levels of education that joins geometry, algebra, graphing, and calculus...