You can either download the .ggb file alone or the complete webpage for students with tasks.
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Ivan De Winne January 2, 2015 - 12:04 PM
June 25, 2015 - 9:26 PM 25 resources — fernrodolfo
April 28, 2015 - 12:07 PM 25 resources — jvdkrabben
July 14, 2015 - 8:09 AM 20 resources — ivandewinne