[cat] Al present document s’exposa la importància i la necessitat de treballar la geometria a l’aula a partir de material manipulatiu. A partir d’una anàlisi de diferents materials, s’han elegit el tangram, el geoplà i el polydron per analitzar-los més en profunditat i explorar les seves oportunitats educatives. A la vegada, s’ha fet una proposta d’activitats per treballar els diferents continguts del currículum a partir dels materials més adients a aquest.
[eng] This paper outlines the importance and need to work on geometry in the classroom with manipulative materials. From an analysis of different materials, tangram, geoplane and polydron have been chosen to analyze them in more depth and explore their educational opportunities. At the same time, a proposal of activities has been made to work on the different contents of the curriculum from the most appropriate materials