You can either download the .ggb file alone or the complete webpage for students with tasks.
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杖池 誠 9 August 2017 - 11:17
11 July 2018 - 11:11 32 resources — Kinkin20131212
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17 June 2018 - 20:59 32 resources — 杖池誠
16 November 2017 - 09:56 14 resources — misonomath