To stop bullying at school, you need to take a comprehensive approach. This means letting people know about bullying and teaching them about it, putting in place and enforcing anti-bullying policies, making sure everyone feels welcome and safe through programs like Social and Emotional Learning (SEL), encouraging peer support and mentoring, teaching teachers how to spot and deal with bullying, and providing anonymous ways to report it. Also critical are support systems for victims and bullies, consequences for bullies, parental involvement, and partnerships with the community. Continuous monitoring and evaluation of anti-bullying programs, promoting positive role models, dealing with cyberbullying, using restorative practices, and, when necessary, taking legal action are all essential parts of making a school environment where bullying is actively stopped and quickly dealt with, making sure that all students are safe and healthy.

https://ed.buffalo.edu/content/dam/ed/alberti/docs/Bullying-brief.pdf