Volle bak... Rob opent de Geogebra Community Nederland! #wisk... on Twitpic

Michel van Ast

senior trainer/adviseur, YoungWorks Academy @youngworks, The Crowd @thecrowdnl, didactic&ICT

1411 days ago

Volle bak... Rob opent de Geogebra Community Nederland! #wiskunde #onderwijs

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