You can either download the .ggb file alone or the complete webpage for students with tasks.
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Maude Iben Gebsi - Aebischer May 25, 2017 - 6:18 PM
July 2, 2017 - 2:26 PM 8 resources — patrymartin
June 3, 2017 - 9:09 AM 8 resources — maude.aebischer