The most significant settings for the development of aggression in childhood are the home and school. Children's aggression in the home is often, but not always, related to their aggression at school.
Research indicates aggression in school is most often directed at peers.
Most aggression is displayed by male students and directed at male students. Female incidents of aggression appear at lower but not negligible rates. Assaults on teachers are not uncommon. Research shows that weapon carrying in schools significantly varies by school setting. The number of students carrying a weapon in some schools is much higher than in other schools.