Shaping the Classroom: How Job Crafting and LMX Can Drive Teacher Performance and Well-Being

The teaching profession plays a central role in shaping educational quality and student development, yet it is increasingly characterized by high job demands and increasing pressures. Against this backdrop, this study examines how individual proactive behaviors (i.e., structural and social job crafting) interact with relational resources (i.e., LMX), to foster teachers’ emotional well-being and professional functioning, drawing on the Job Demands–Resources (JD-R) model and LMX theory. Using cross-sectional survey data from 374 Flemish public secondary school teachers, we investigated the relationships between job crafting, well-being, and performance outcomes, as well as the mediating role of LMX. The results indicate that both forms of job crafting are significantly associated with lower emotional exhaustion and higher teacher enthusiasm and creative performance. Moreover, LMX emerged as a key, yet underexplored, mediating mechanism linking job crafting to teacher well-being and enthusiasm. These findings advance theoretical understanding of how proactive work behaviors translate into positive outcomes in educational contexts and highlight the importance of high-quality leader–teacher relationships. From a practical perspective, the results suggest that encouraging teachers’ job crafting behaviors alongside supportive school leadership may be crucial for fostering sustainable well-being and performance in education.