La magie mathématique comme outil de motivation Mathematical magic as a motivational tool

Attracting students into STEM disciplines is a necessary task. Of course demonstrations in physics or chemistry produce interaction and with people and engage them with science. Mathematics, despite its résumé ? summary 84 inner beauty, is far away from the main public but mathematical magic performances as the main skeleton of recreational mathematics activities has been proved useful. In this talk we discuss and introduce mathematical ideas by means of magic tricks, all of them with a mathematical background. In that sense we will deal with binary numbers, bipartition method, divisibility, logical decisions, probability, geometrical dissections and topology. So, abstract concepts are brought to general public in a more attractive way. There are deep mathematics in card shuffling and cards have been used to model different concepts. Using red/black properties it is easy dealing with even/odd numbers. Moreover, the position where a card arrives when a 'perfect' shuffle is made is related to binary numbers. Cards are also good for introducing coding systems. Finally, the movement on the stage and magician's presentation techniques are also good for communicating science and getting people attracted to these fields of knowledge.