You can either download the .ggb file alone or the complete webpage for students with tasks.
I agree to the terms of GeoGebra's non-commercial license
Serlo Education August 26, 2015 - 7:34 AM
July 4, 2017 - 12:53 PM 10 resources — lehrerL12
August 18, 2016 - 12:11 PM 85 resources — serlo.org