Geogebra is an interactive geometry, algebra, and calculus application for teachers and students. This tool is accessible even without wifi.
1. Go to www.geogebra.org/download and click on "Chrome App".
2. After clicking on "Chrome App", click "Add to Chrome", then "Add App". To access Geogebra, go to your Chrome Apps in your Bookmarked Pages then select the Geogebra icon.