The 1-2-3 Care Toolkit is intended to support caregivers on their journey towards trauma sensitivity. It is organized by topic, each offering a brief overview, specific tools that can be used with children, and where to find more information. Also included are handouts that can be used as teaching aids. Public health nurses at Spokane Regional Health District (SRHD) developed this toolkit for caregivers of children. Caregivers are defined broadly to include parents, grandparents, child care providers, teachers, and others who care for children daily. Recent advances in the understanding of how early childhood experiences shape the way the brain works over the lifetime reveal just how critically important the job of caring for children is. It turns out that the brain grows and develops differently in response to nurturing versus traumatic environments.