What is "teacher burnout" primarily characterized by?

Teacher burnout is primarily characterized by emotional exhaustion and decreased effectiveness. This phenomenon typically manifests in educators experiencing overwhelming stress and fatigue, which can lead to feelings of ineffectiveness in their roles. When teachers become emotionally drained, they may struggle to engage with their students, deliver lessons with the same passion, and maintain a supportive classroom environment. This decline in effectiveness can impact not only their own wellbeing but also the learning experiences of their students, as a teacher who is burnt out is less likely to provide quality education and support.

The other aspects mentioned in the alternative choices—such as increased enthusiasm, job security, satisfaction, and enhanced collaboration—do not align with the essence of burnout. Instead, they represent positive attributes of teaching and a healthy professional environment, which stand in stark contrast to the negative implications of burnout.