“…However, to date there is a lack of empirical evidence on how teachers exercise their metacognitions in their professional development, which can be conceptualized as a dynamic and complex process of identity (re)construction (Kelly, 2006; Yuan, 2016). As illustrated by existing literature (De Costa, Rawal, & Li, 2018; Norton & De Costa, 2018; Song, 2016), teachers’ identities derive from and, in turn, influence their cognitive engagement (e.g., lesson planning and execution), social interactions (e.g., with students, colleagues, and school leaders), and emotional experiences (both positive and negative). Given the complexities and intricacies involved in language teachers’ identity work, it is important for language teachers to foster and apply their metacognitions about identities , which refer to various forms of metacognitive knowledge, strategies, and experiences (e.g., Jiang et al, 2016; Pintrich, 2002) they activate and employ in managing, regulating, constructing, and reconstructing their identities in their situated contexts (Yuan, 2019).…”