Illustrative Mathematics® Welcomes Coteach as a New IM Certified® Partner

February 25, 2026 — Supporting schools and districts as they implement high-quality curriculum takes more than strong materials. It takes tools that help educators make sense of lessons, anticipate where students may need additional practice, and plan instruction that is both rigorous and responsive. That’s why Illustrative Mathematics is proud to welcome Coteach as a new IM Certified partner.

“Educators need thoughtful, well-aligned support as they plan, reflect, and adapt instruction for their students,” said Dr. Kristin Umland, CEO and cofounder of Illustrative Mathematics. “Coteach reflects the kind of partnership we value at IM—one that respects the integrity of the curriculum while helping educators use it with confidence.”

Coteach is a curriculum-aligned AI assistant deeply integrated with IM v.360 and designed to support educators using the curriculum. Developed by Teaching Lab Studio, Coteach understands how lessons connect to learning goals, unit progressions, and the kinds of thinking students are likely to bring to a task. With Coteach, educators can customize lesson plans, add scaffolds, adjust pacing, and prepare materials tailored to their own classroom contexts, helping more students engage meaningfully with grade-level mathematics. 

“Many educators describe Coteach as a thought partner: a place to ask questions, talk through instructional choices, and create classroom-ready resources that support all learners, without losing sight of the intent of the lesson,” said Riz Malik, Fellow at Teaching Lab Studio and Cofounder of Coteach. 

The addition of Coteach reflects Illustrative Mathematics’ ongoing efforts to expand the support available to schools using IM v.360. These supports are focused on helping teachers feel prepared as they bring our problem-based math instruction to life and respond to the needs of their students.

About Illustrative Mathematics

Illustrative Mathematics is a nonprofit organization dedicated to creating a world where all learners know, use, and enjoy mathematics. Today, more than three million students nationwide use IM’s high-quality, problem-based curricula. IM also provides professional learning and a community to support all students’ mathematical growth. Learn more at IllustrativeMathematics.org.

About Coteach

Coteach is a curriculum-aligned AI assistant incubated by Teaching Lab Studio. Designed to support educators using IM v.360, Coteach helps teachers plan, scaffold, and adapt instruction while preserving the rigor and coherence of the curriculum. Learn more at coteach.ai.