In this paper, we present a microanalysis of a specialized STEM (science, technology, engineering, and mathematics) high school teacher's experience of self-initiated science inquiry curriculum reform. We examine the meanings of these two constructs: "inquiry curriculum" and "curriculum change" through the process lens of interactions, actions, and interpretations. Symbolic interactionism is the theoretical framework we used to frame our analysis of how this teacher, Darren Daley (a pseudonym) and various stakeholders purposefully and strategically engaged in "face-work" and act out lines of actions to advocate or oppose curriculum change. Symbols are used in this world of face-to-face encounters to communicate, imply, and assert, meanings through socially flexible and adjustable processes. We scrutinize how Daley (un)consciously engaged all of these to defend his decisions, actions, and outcomes and "look" to others as doing inquiry reform. The meanings of such work are not intrinsically driven or reactions to psychological and extraneous factors and forces, but emergent through "interactions." The data collection methods include interviews with Daley, school administrators, students, and parents, lesson observations in Daley's class, and gathering of school website pages, brochures, and curriculum materials. We represent data in narratives describing storied history, voices, interactions, anecdotal accounts from individuals' experiences, and interpretations. The analysis and findings illuminate the nature of teacher agency--how it is reclaimed, sustained, reinforced, contested, exercised, and modified in more nuanced ways, hence offering an alternative lens to theorizing and empirically analyzing this construct.