This national study of 1858 teachers participating in professional development(PD) summer programs in the United States encompasses a wide range of science subjects and grades. It was conducted to identify program features associated with increases in two types of teacher knowledge that are goals for most professional development programs: teacher…

To encourage the formation of science identity among girls, many scholars and practitioners have suggested to assign same-gender science teachers to students so that the teachers can serve as gender role models. However, direct evidence of any long-term effect of gender-matching is scarce. In a nationally representative survey of college students…

Shortages of science and mathematics teachers are a serious concern in the United States. Despite the implementation of intervention strategies to address this problem at the high school level, little empirical research had been conducted to inform and strengthen these initiatives. This retrospective cohort study used multinomial logistic…

One of the foundational assumptions in education is that greater teacher knowledge contributes to greater gains in student knowledge, but empirical evidence in support of this assumption is scarce. Using a U.S. sample of 79 biology teachers and their 2749 high school students, we investigate whether teachers' subject matter knowledge (SMK) and…

This study examines the relationship between teacher knowledge and student learning for 9,556 students of 181 middle school physical science teachers. Assessment instruments based on the National Science Education Standards with 20 items in common were administered several times during the school year to both students and their teachers. For items…