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21 GIFs That Explain Mathematical Concepts | IFLScience
J'espère que de nos jours, les profs de maths s'inspirent de ce genre de choses ...Monday 16 February 2015, 11:07 - permalink -- http://www.iflscience.com/brain/math-gifs-will-help-you-understand-these-concepts-better-your-teacher-ever-did