Proficiency by grade 3 is linked to long-term academic and life outcomes, making early identification of struggling students key.

Students are barely beginning to recover from a historic decline in math performance. Across every grade and region of the country, students in every racial, income, and disability group have ...

As students move up through the grades in elementary and middle school, math marches relentlessly forward—whether they’re ready or not. Math is a hierarchical field, building sequentially on prior ...