Teacher retention is a persistent issue in school improvement. While it is true that some degree of teacher turnover in schools is both healthy and inevitable, the exodus of large numbers of teachers over time diminishes the capacity of a school to serve its students and creates new problems related to recruiting and inducting new teachers. States and districts are experimenting with a variety of programs to encourage retention. One body of research highlights the importance of a supportive working environment. This newsletter issue notes suggested strategies for five factors: (1) Time; (2) Principal Leadership; (3) Empowerment and Professional Influence; (4) Professional Development; and (5) Curricular Resources. Although administrators have little control when teachers leave the classroom because of retirement, family responsibilities or health issues, but they can positively impact workplace conditions. Research indicates that when given adequate time to prepare, professional respect and appropriate support, teachers are more likely to remain in the profession. [This document was produced by the Center for Comprehensive School Reform and Improvement, administered by Learning Point Associates in partnership with the Southwest Educational Development Laboratory (SEDL) and WestEd, under contract with the Office of Elementary and Secondary Education of the U.S. Department of Education.]