In the United States, visits to informal learning environments [ILEs] such as zoos, have historically been considered to be important educational experiences that promote increased student achievement in content-area subjects. Recently, however, funds are more likely to be diverted away from field trip experiences, depriving less-privileged…

In this study, we use the US nationally representative Early Childhood Longitudinal Study-Kindergarten Cohort to examine inequalities in opportunities to learn mathematics. Specifically, we examine the characteristics of US students' elementary school math teachers and the instruction they provide. While our findings are consistent with previous…