Agency as power: An ecological exploration of an emerging language teacher leaders' emotional changes in an...

Teacher emotion, an important aspect of language teacher psychology (LTP), has recently drawn growing attention in language teacher development studies. Previous research has shown that language teachers, typically pressured by heavy workloads, may face emotional challenges from multiplied sources, especially in the context of educational changes such as curriculum reform and the COVID-19 emergency. Current literature on teachers' emotions largely centers around ordinary language teachers, with teacher leaders whose agentic actions often exert greater influence on the effectiveness of educational changes rarely examined. Situated in a top-tier research university that has been promoting an English for Academic Purposes reform to enhance its science students' multilingual competence in academic contexts, this longitudinal case study tracked the emotional trajectory of an English teacher, Lea, for 5 years. Adopting an ecological perspective, our study confirms that language teachers' emotions vary across the reform ecosystems and extends the current inquiry by conceptualizing the intricately interrelated teacher emotion, agency, power, and identity as dynamic constructs. This study also reveals how the reform-inflected emotional changes were associated with Lea's EAP teacher and teacher leader identity construction, with both identities reinforcing each other, which to some extent reconciled Lea's emotional tensions. Our study bears significant implications for language teachers involved in educational reform, teacher leaders, and school administrators.