Algebra I is a crucial course for middle and high school students for successful STEM-related coursework. A key issue is whether students should take Algebra I in Grade 8 versus Grade 9. Large-scale policy studies show conflicting results, and there are few (particularly longitudinal) individual difference studies. In the study, 53 students were…

There is a strong research base on the underlying concomitants of early developing math skills. Fewer studies have focused on later developing skills. Here, we focused on direct and indirect contributions of cognitive measures (e.g., language, spatial skills, working memory) and numerosity measures, as well as arithmetic proficiency, on key…

This article presents the authors' response to Sharon Vaughn and colleagues' article "Response to Intervention for Middle School Students With Reading Difficulties: Effects of a Primary and Secondary Intervention." In Vaughn et al. article, a study in which they provided professional development to content area teachers, with the goal of…

This study examined computerized classwide applications of curriculum-based measurement (CBM) to improve teachers' math planning within large group instructional settings, using a mathematics operations curriculum in 10 sixth grade classes. Preliminary findings suggest CBM increases teachers' abilities to incorporate students with disabilities…