Many studies conducted in the last decades report that very few elementary-grades students understand the meaning of = in mathematics, and that upper-elementary students do not understand it any better than the lower-elementary students do. Using data from thousands of Florida elementary students, we show that students in Florida perform ten to…

A substantial amount of evidence suggests that students, particularly those from economically disadvantaged households, experience summer reading loss. Available evidence suggests this is due to a lack of participation in literacy-focused activities and access to books during the summer break from school. The current study investigated whether…