Sentence Pattern: Violence in American schools has sparked debates about the root cause of students' anger and aggressive behavior and proposed proactive solutions.I. The initial indicator of levels of school violence as a harmful problem saw a sharp increase between 1990 and 2014.a) According to the National Center for Education Statistics (2011), between 1992 and 2009 there were 14 to 34 homicides among children aged 5 to 5 years. to 18 at school each year.b) The Centers for Disease Control and Prevention (CDC) reported that in 2010, approximately 828,000 nonfatal victimizations occurred at school among students ages 12 to 18. 1. A breakdown includes 470,000 victims of theft, 359,000 victims of simple assault, and serious violence, CDC (2011).II. Society has suffered from various factors that contribute to school violence. These factors are personal, family, school and environmental. a) A child may suffer from personal factors such as a history of violent behavior, a victim of child maltreatment and attributing hostility towards others is imperative.1. Due to previous school shootings, the Federal Bureau of Investigations (FBI) conducted a two-year investigation, Doake, Melissa (2007). b) Family factors include exposure to violence, deplorable family functioning, reduced emotional attachment to parents and poor child monitoring.c) Aspects surrounding the school environment as contributors are association with delinquent peers, a extremely low engagement in school, academic failure, lack of discipline and failure to enforce school policies.d) Environmental factors are exposure to drug and alcohol use, poverty and involvement in street gangs.III .......half of the paper ......ica performed random metal detector checks on their students, Doake, Melissa (2007).d) Counseling programs were available for children with aggressive behavior and for victims exposed to school violence.e) Staff training has been implemented in schools that have suffered a violent tragedy.1. According to Shah, Nirvi (2013) reported that laws have been adopted to prevent violence in schools. For example, a Missouri bill requires all school personnel to participate in stimulated active shooter and intruder response drills conducted by law enforcement. f) Security measures are implemented in schools to prevent school violence. According to Dinkes and colleagues, security cameras have been placed in schools to monitor 28% of primary schools, 42% of middle schools, and 60% of high schools, Doake, Melissa (2007).