Teachers' on-the-job interactions with colleagues impact their effectiveness, yet little research has explored whether and how teacher performance predicts these interactions. Drawing on 5 years of social network data from one school district, we explore the relationship between teacher performance and teachers' instructional advice and…

The increased use of value-added measures is a result of policymakers viewing traditional measures of teacher effectiveness as obsolete and unrelated to student achievement. Additionally, literature lacks substantial findings examining the relationship between principal observation ratings and a teacher's value-added scores based on the…

Relatively little research has explored whether schools differ in their effectiveness for different group of pupils (e.g. by ethnicity, poverty or gender), for different curriculum subjects (e.g. English, mathematics or science) or over time (different cohorts). This paper uses multilevel modelling to analyse the national test results at age 7 and…

Effective teachers have an enormous impact on the lives of their students. Great teachers can help students who are behind academically catch up to grade-level expectations. By accelerating student performance, they can help close the opportunity and achievement gaps that cut short the college and career dreams of so many low-income students and…