This tool provides information on teacher mobility and attrition and its negative impact on student achievement, which results in significant costs for districts needing to recruit and onboard new teachers. Though some teacher attrition is natural and unavoidable (e.g., moving away from the district, retirement, and other life changes), factors within a district’s control, such as teacher working conditions, may influence teachers’ decisions to stay or leave. REL Northwest is supporting the Lower Kuskokwim School District in Alaska to improve teacher retention in the district through the Alaska Improving Teacher Retention and Recruitment in Rural Schools partnership