In support of the national movement to improve mathematics instruction and assessment, states and districts are looking for the best tools to measure student progress toward proficiency. There is a national dialogue about how to use 8th-grade measurements like ACT EXPLORE and NAEP as predictors of student success and school accountability. This…

There is convincing evidence that many students struggle to learn mathematics proficiently. One plausible contributor to the low math achievement is the quantity and quality of learning opportunities provided in classrooms. These opportunities may fall short of addressing the learning needs of students, especially those at risk for failure in…