The study stems from the analysis of the 2016 Legal-Media-Parliamentary Coup that triggered a sharp crisis, mainly in the educational field. In view of this situation, it establishes dialogues with a counter-hegemonic pedagogical tendency: the Historical-Critical Pedagogy (PHC), proposing to answer what have been the contributions of the PHC to thinking about the public school in the context of crisis in Brazilian education. Through bibliographic research, the results indicate that, under a context of dismantling and vulnerabilities, the PHC is incorporated in educational debates and practices as an instrument of humanization, defending free public schools, omnilateral training, class struggle and the construction of an emancipatory praxis. As a pedagogical theory, PHC represents a fresh start in the face of the contestation of decontextualized curricula and processes, indicating the integration of individual/collective knowledge and universal knowledge, a movement conducive to the formation of articulated individuals in favor of social transformation.