The proposition is as follows: it is necessary to have two distinct spaces for teacher training, one being the university classroom and the other, the school classroom, this being the workplace for which the undergraduate is preparing. The goal is to show why these two bodies of knowledge, one of theory and the other of practice, belong to two separate training fields; these are inexorably distinct; for this reason, they require different places and methods in order to be taught and learned. However, their different natures do not interfere with the unified blueprint ("inseparable genetics") that underpins both. When introducing a specific place for learning the theory and another for learning the practice, it is possible to show the constitution of teacher's habitus and student's habitus, that constitute the operational categories of the proposition. It is exactly in this sense that the particularity of this study resides. The empirical base was constituted with reflections realised in Brazil, starting from 1990, on the theme: How does one learn to teach in the classroom. The theoretical basis chosen for this formulation was based on some notions arising from the ideas of Bourdieu (1983a; 1983b; 1983c; 1989; 1992; 1996).
teacher's habitus; student's habitus; teacher training, education