Abstract
In this article, the Mathematical Working Space model (MWS) is presented. It shows the dynamism of this model to reflect on the teacher's actions in the classroom and on the important elements to consider in their training. The MWS is built based on the mathematical knowledge and experience of the subject to do mathematics, hence the organization refers to two planes: the epistemological and the cognitive one, which will be the centre of the discussion in this work. Monographic contributions in the dynamics that are established in the role of the teacher in the knowledge and the interactions in the classroom are presented, from two points of view, from the teacher's training and from the teacher's role with the students.
Mathematical Working Space; Teacher's knowledge; Mathematics Professional Development; Mathematical Education
