Better Math Curriculum Decisions Start With Evidence
WestEd is partnering with instructional leaders nationwide on a 4-year study funded by the Gates Foundation of what makes math curriculum work for grades 6–8. Explore our findings or join us to improve math in your district.


Explore Study Findings
Since the 2024–25 school year, WestEd has been studying high-quality math curricula and sharing results as we go. Findings are updated regularly and include:
- Impact studies
- Links between implementation and outcomes
- Case studies
- Presentations, webinars, and blog posts
Check back often to see what’s new.
Join the Study
Partner with WestEd to learn what it takes to implement high-quality math curriculum. Participating districts receive an annual professional-learning stipend. Now recruiting through fall 2026—apply today.


About the Illustrative Mathematics® Efficacy Study at WestEd
At WestEd, we believe research and data lead to better teaching and learning. This study is examining how middle school math programs affect student outcomes—and what it takes to put them into practice successfully. Learn more about us.