This work takes as reference the Physics course of Karlrsruhe (CFK) in order to work the subjects of mechanics and free fall, in a group of undergraduate students in physics teaching. Following the guidelines of the CFK, the test began with a brief introduction of concepts: extensive and intensive magnitudes around free fall phenomenon. At the end of the session, the model was evaluated by the student-teachers, who sought to probe some parameters of the process among them: knowledge construction, pedagogical innovation, subject preparation, mastery of the subject and way of evaluating, as well as the viability of this model of teaching physics in our context. With this evaluation results, observable analyses are obtained to make improvements at the moment of implementation in other contexts.