You can either download the .ggb file alone or the complete webpage for students with tasks.
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peterfleck September 1, 2013 - 10:07 AM
June 7, 2017 - 7:13 PM 8 resources — Christina Zorn
April 12, 2017 - 8:51 PM 11 resources — Brigitte Vincze
March 11, 2017 - 6:19 PM 6 resources — Erich Grasegger
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April 24, 2019 - 3:29 PM 83 resources — Christian Conradi