In this study the authors set out to better understand the relationship between teacher knowledge of science and student learning. The authors administered identical multiple-choice assessment items both to teachers of middle school physical science and to their students throughout the school year. The authors found that teachers who have strong…

Despite being known as the land of opportunity, the United States is far from equitable when it comes to the mathematics that students have the opportunity to learn. In this article, the authors explore the extent to which students in different schools and districts have an equal opportunity to learn mathematics. Specifically, they discuss…