Offers information about how to work with children and use a developmental lens. Thinking developmentally involves taking note of the particular age when a trauma exposure occurs, theorizing about what current developmental tasks it may disrupt, and which developmental competencies a child may fail to acquire and master. It also requires considering how an inadequate set of developmental competencies, coupled with poor coping skills and risky behavior, can cascade forward to impede a child’s ability to successfully work on and achieve developmental tasks further down the road.