You can either download the .ggb file alone or the complete webpage for students with tasks.
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Fernando Martínez November 2, 2014 - 12:03 PM
May 7, 2015 - 7:47 PM 10 resources — bereniz16
May 7, 2015 - 7:49 PM 10 resources — barbarasalinas21
May 11, 2015 - 7:04 PM 12 resources — lupita17rosas