The cycles aren't an isolated proposal any longer, the new LDB legitimated them and they are being adopted by many school nets. This text asks itself about the kind of professional that is being formed in this such kind of pedagogical work organisation. The reflection is structured in 2 parts. The first reflects on the upbringing of thinking over the conceptions and formation practices that take place in the implementation of cycles. The 2nd part reflects about the virtualities that form the whole process of not building the structure centres in the temporalities or Human Development Cycles.