From time to time I receive requests for help with GeoGebra. Not being a mathematics teacher, my hands-on experience with the program is limited to just messing around and trying things. When I’m asked for resources for learning how to use GeoGebra I point people in the direction of the GeoGebra website and YouTube channel.
On the GeoGebra YouTube channel you will find more 200 video tutorials. If you’re just starting out with GeoGebra on your desktop or tablet, the GeoGebra quickstart videos will be of use to you. The videos are silent, but the visuals are clear.