September 14, 2017

How Teacher Turnover Hurt Improvement Efforts in These Minnesota Schools

By Bellwether

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This is first in a series of blog posts and resources to offer lessons and reflections for school leaders, district officials, and education policymakers using data and stories from the McKnight Foundation Pathway Schools Initiative. The series is supported by a grant from the McKnight Foundation.
As students come back to school this fall, many will find teachers and principals they’ve never seen before. About 16 percent of teachers leave the profession or change schools every year, and that number is even higher in high-poverty schools, urban schools, and low-performing schools.
How does teacher turnover affect students and schools? The research is not always clear. Several studies in urban districts show a general negative association between turnover and student achievement. One study found negative teacher turnover effects spread even to students with veteran teachers, suggesting turnover can impact schoolwide achievement and morale. But a certain amount of turnover is inevitable, and in some cases, staff changes can improve student scores by exiting ineffective teachers or allowing teachers to take on new leadership roles in schools.

The experience of the Pathway Schools Initiative, a seven-year effort to improve third grade literacy in seven Minnesota elementary schools, sheds further light on how turnover can hurt the momentum of school improvement efforts. With the support of the McKnight Foundation, schools participating in the initiative worked with the University of Chicago Urban Education Institute (UEI) to implement PreK-3rd improvement efforts.
All seven Pathway schools were urban (located in the Twin Cities metropolitan area), relatively low performing, and predominantly low-income. But rates of teacher turnover varied widely between schools and from year to year. The graph below shows the differences in PreK-3rd grade teacher turnover among four participating schools over a two-year period.
Ultimately, schools in the Initiative struggled to make significant progress in improving PreK-3rd grade instruction and literacy outcomes. An independent evaluation conducted by SRI International identified teacher turnover as one of the major challenges, among many, facing schools in their professional development and instructional change efforts. Evaluators also found some cases where newly hired teachers were associated with lower student performance, but results were inconsistent by school and by year.[1] Overall, professional development was a huge component of the initiative, and when large numbers of teachers left, that institutional knowledge and investment left too. As one teacher told evaluators, “We’ve had so much turnover among the staff that we’re reinventing the wheel every year.”

Data collected by SRI International, from SRI 2016-17 Pathway Schools Initiative Annual Report. Note: Data were not available in this time period for every school in the Initiative.


School improvement efforts like the Pathway Schools Initiative, which focused on assessment, instruction, and professional development, need a certain level of stability to succeed. But chronic educator turnover in high-need schools should not be viewed as an inevitable reality. In blogs to come in this series, we’ll continue digging into data and stories from these schools to look at the impacts of teacher and leader turnover and examine potential action steps schools, districts, and states can take to ensure turnover is not a roadblock to school improvement.
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[1] Schmidt, R.A., Chen, W., Torre, D., Woodworth, K., and Golan, S. (2017, April). The Role of Student and School Characteristics in Predicting Early Literacy Gains. Poster Presentation at the annual conference of the Society for Research in Child Development (SRCD), Austin, TX, and Pathway Schools Initiative Phase 1 Case Study

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