Students learn best when they are in environments in which they feel safe, supported, challenged, and accepted. In addition, environments that have strong school climates foster the social, emotional, and academic well-being of all students. Research shows that when schools and districts effectively focus on improving school climate, students are more likely to engage in the curriculum, achieve academically, and develop positive relationships; students are less likely to exhibit problem behaviors; and teacher turnover is lower and teacher satisfaction is higher. This "Quick Guide" provides district and school leaders, teachers, school staff, and other members of the school community with information about how to initiate, implement, and sustain school climate improvements. This "Quick Guide" can be used in combination with the other tools and resources available within the School Climate Improvement Resource Package (Resource Package), including self-assessments to identify which resources would be most helpful to you as well as pointers on how to approach school climate improvements. Educators can create a positive school climate through a coordinated, purposeful effort. Districts and schools that effectively improve school climate typically engage in five sets of activities. Figure 1 in this guide lists the five activity sets. This "Quick Guide" provides strategies on how to effectively implement these sets of activities. It also advises on how to implement the strategies well and what to avoid. [For the complete resource package, "Reference Manual on Making School Climate Improvements. School Climate Improvement Resource Package, 2017," see ED578926.]