Teachers are confronted with a variety of problems in their daily lives. These range from classroom disruptions caused by violence or concentration issues to acute psychological crises in individual students. Topics such as anorexia or depression, bullying, or threats of violence are increasingly appearing in the immediate or broader school environment. Educators and caregivers often have to make quick decisions based on limited information in these situations. Therefore, they urgently need a solid foundational knowledge of the most important psychological problem situations and the appropriate measures they can take in response.