This course will explore the various protective and risk factors affecting the psychological well-being of both students and staff. Protective factors, such as positive teacher-student relationships and a strong sense of school community, will be highlighted. On the other hand, at-risk factors including bullying, cyberbullying, work-related stress, and burnout will also be addressed. The course will also explore mental health promotion, through the lens of developmental and educational psychology research, focusing on the short- and long-term psychological impacts of the COVID-19 pandemic on the well-being of both students and teachers. Furthermore, the course will introduce the theoretical framework of Social and Emotional Learning (SEL) and offer a variety of practical activities that can be implemented in diverse educational settings for students of different ages and developmental stages.