Over the past few decades, the prevalence and adverse impact of trauma on children have been widely researched and documented. Trauma exposure in children has been associated with long-lasting and detrimental outcomes in childhood and into adulthood, causing disruptions and impairments in their cognitive, social-emotional, mental health, and physical health processes. As a result, children with trauma backgrounds significantly struggle in schools in terms of their academic performance, peer and adult relationships as well as behavioral challenges. Schools are obligated to intervene and provide appropriate resources to support children with trauma backgrounds to be successful and competent; therefore, trauma-informed practices are needed in schools to serve and support this vulnerable population of children more compassionately. The primary components of trauma-informed practices include providing professional development training, realigning the policies and procedures of the schools to promote a safe and supportive learning environment, utilizing evidence-based intervention resources and prevention strategies, promoting resilience and protective factors, and encouraging involvement from families and community agencies to support the whole child approach. School psychologists also play a crucial role in initiating and implementing trauma-informed practices as they have the skillset and training to lead the system change, intervention, and assessment process. This extended literature review concludes with a comprehensive outline of a two-day intensive professional development training program for school personnel, which includes information on the prevalence and impact of trauma, strategies on how to respond to trauma symptoms in the classroom and on campus, the need for trauma-informed practices, and the integration of trauma interventions into the current multi-tiered system of support. [The dissertation citations contained here are published with the permission of ProQuest LLC. Further reproduction is prohibited without permission. Copies of dissertations may be obtained by Telephone (800) 1-800-521-0600. Web page: http://www.proquest.com.bibliotheek.ehb.be/en-US/products/dissertations/individuals.shtml.]