You can either download the .ggb file alone or the complete webpage for students with tasks.
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michi.schneider — August 26, 2011 - 8:55 PM
May 23, 2015 - 7:08 AM 53 resources — hermann.betti
November 9, 2014 - 9:16 PM 52 resources — nmsgaspoltshofen
September 26, 2019 - 2:15 PM 30 resources — Langwieser
