This study explores how teacher characteristics and school context affect the timing of teacher exits from schools, using a two-level discrete-time survival analysis framework. Results for Los Angeles Unified School District show that school context is crucial, especially type of school and organizational characteristics, beyond individual teacher qualifications. Differences between elementary and secondary teachers are also observed.

California is at a critical juncture in education, needing up to 190,000 new teachers by 1991 and replacing 75% of the teaching force. Recommendations to improve teaching quality are proposed in this paper, focusing on changes in certification, professional training, and career structure. The state has the opportunity to ensure quality education for the 77 million students who will be taught by these new teachers.