Comprehensive resource for adopting a trauma-sensitive approach schoolwide. Includes 3 components: 1) trauma 101 e-resource and corresponding slide deck for use providing PD on trauma and its effects; 2) Building trauma-sensitive schools online module and handouts that introduce all staff to a framework for trauma-sensitive schools and universal practices; and 3) a Leading trauma-sensitive schools module and corresponding action guide that includes steps for implementing a universal trauma-sensitive approach including where and how to use other components of the package.