ABSTRACT
Science, a human activity that occurs in the history that women and men make with their practice, is not, for this very reason, an a priori of history. The science of physics arose in the modern age with Galileo and corresponded to the practical needs of fledgling industry. Professor Adao Cardoso, a biologist from the University of Campinas, told that he was invited by a young Indian man from the interior of the Amazon region to learn to fish with a spear. Great works are not the huge tunnels crossing the city from one neighborhood to another or the parks full of greenery in the nice areas of the city. The dialectic between practice and theory should be fully lived in the theoretical contexts of the training of groups of educators. The continuing training of the learner, which implies the critical reflection on practice, is founded exactly on this dialectic between practice and theory.
