We believe that the student, the knowing subject, in many cases is called to be the manager of their learning, to deploy actions in the interest of appropriating new knowledge. In this sense, mathematical possible is an alternative in a context where computerized educational materials have become instructional media with a marked preference among students; and in tools for teachers in their educational work, as strategists of the teaching-learning process. We are working on its development, so that this website is better every day.