By studying the personal work of the students, we introduced the notion of Personal Practice Paths, idealized from the conception of personal praxeologies and praxeological recombination outlined by the praxeological dynamics inherent to the task resolution process. The study was done with students of a mathematics teaching degree course from a Brazilian university. As a methodological approach, we adopted a link-up between didactic engineering and ATD concepts, which allowed us to think about the emergence of a new dialectic that underlies the firstfruits of the Personal Study and Research Paths.