Abstract
Considering the interest of linking the mathematics learning to everyday situations, the mathematical tasks creation from real contexts can be a formative element for future teachers and even become the main focus of their training. In this paper an experience with future mathematics teachers was analyzed. In it, groups of students created tasks, from real contexts, through a process based on an Initial Proposal, discussion with classmates and, as result of reflection on own work, a Final Proposal. The developed process achieved a high motivation in the students from the possibilities that the real contexts offer to learn mathematics, they created some interesting tasks which improve those of the textbooks in diverse senses. This opens future perspectives such as, for example, set up the training of mathematics teachers based on the reflection on tasks creation in real contexts.