This essay aims at describing the process carried out during the master's thesis in the Postgraduate Program in Languages, in the area of Language Studies, with the French Discourse Analysis approach, whose pillars are Dominique Maingueneau and Michel Foucault. However, here, the method of cartography will be presented based on a Deleuzian perspective, having as main theoretical support the book Pistas do Método da Cartografia: pesquisa-intervenção e produção de subjetividade. The result is the possibility of narratively intertwining theory and practice, presenting the power of this method in areas of science beyond psychology. The master's research was based on the law proposal PL 867/2015 analysis, a result of the movement Escola Sem Partido [Nonpartisan School], through the construction of a discursive network, composed of related law proposals, in addition to PL 14111/2015, which typifies the so-called crime of "ideological harassment" in the classroom. [ABSTRACT FROM AUTHOR]