This dissertation investigates the inequitable distribution and causal impacts of mathematics teachers' content knowledge for teaching (CKT) on instructional quality and student learning outcomes. Using the rich information in the Measures of Effective Teaching (MET) project longitudinal database, the study addresses three core research questions:…

Context: Improving teacher quality and granting every student equal access to high-quality instruction have been a shared goal of many parents, educators, and policy makers for decades. In practice, teacher qualification measures (e.g. teacher degree, years of experience etc.) are often used as proxies of teacher quality. However, Shulman (1986)…

What becomes of language students who participate in study abroad and then continue their study at home? What part can their memory of in-country living play in shaping subsequent classroom experiences, not only for the students themselves but also for their classmates and teachers? This study explores changes in the motives of a study abroad…