You can either download the .ggb file alone or the complete webpage for students with tasks.
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Matthias Rahofer March 24, 2015 - 9:01 AM
June 30, 2017 - 4:29 PM 8 resources — anlams
December 19, 2016 - 6:41 AM 6 resources — h.rinner
April 7, 2015 - 7:31 AM 6 resources — c.hiesmayr