The study of geometry constitutes for many young people a great challenge to achieve because it requires a great effort to understand the matter. That is why the objective of this project was to design a strategy for solving problem situations and that of geometric figures for the calculation of volumes and areas of geometric bodies aimed at strengthening communicative competence and problem solving, whose method was oriented to the elaboration of a didactic unit reaching the conclusion that teachers should update their academic strategies based on activities that are easy to understand.