The following research project analyzes the ways in which the subjectivities of teachers are constituted in a school setting, an environment which is conceived in terms of tensions, conflicts and context.The analysis focuses on teachers of two public institutions in Bogota.It is based on select theoretical and methodological contributions of Michel Foucault about the constitution of subjectivity.It also incorporates the analysis of the constitutive tensions of the modern school, put forth by Oscar Saldarriaga and the historical group of Pedagogical Practice.These tensions are used as a "grid analysis" to approach the school and its complexities; thus, rather than give concrete answers about the school and subjects, these tensions offer points of departure to reflect on how subjectivities are produced.They also allow us to approach the question of how teachers' subjectivities are constituted and enable a thoughtful perspective about their practices, opening creative spaces to understand these subjectivities in a new way.