More than five million students nationwide use Illustrative Mathematics’ problem-based math curriculum. But even the strongest curriculum can’t anticipate every classroom context, every student misconception, or every pacing shift that happens mid-unit. The real work lives in the space between the curriculum as written and instruction as it actually unfolds.

Coteach was built to live in that space.

We’re excited to share that Coteach – an AI-powered tool built in partnership with Teaching Lab Studio – is now officially IM Certified® by Illustrative Mathematics.

Why IM Certification Matters

IM Certification means that Illustrative Mathematics has reviewed Coteach and determined that it reflects the structure, pedagogy, and values of IM v.360. With the rapid rise in AI tools being used in the classroom, this certification signals trust: districts and schools can be confident that the support Coteach generates uphold the rigor and coherence they invested in when adopting IM.

Teaching Lab, the parent organization of the Teaching Lab Studio, is now the only organization with both IM Certified services and IM Certified tools – allowing us to support educators with aligned professional learning and aligned technology.

What This Looks Like in Practice

Coteach knows the full IM curriculum: how lessons and units connect, how learning evolves across grade levels, and how instructional routines are designed to function. This deep integration means:

• Teachers use Coteach to plan and adapt IM lessons while staying grounded in grade-level expectations. When pacing shifts, Coteach accounts for how that ripples through the rest of the unit. When students need scaffolds, it builds them into the lesson — not around it.

• School leaders use Coteach to align observation priorities with what teachers are actually delivering — and to connect the dots of IM implementation from one school year to the next.

• District leaders use Coteach to ensure districtwide coherence and translate school-level needs into actionable supports — anytime.

This alignment requires extensive collaboration with coaches, leaders, and classroom teachers. Every feature was designed to respect the integrity of the curriculum, while making it more usable and flexible in real-classroom settings.

What's Next

If you’re already part of the IM ecosystem, Coteach is ready to support you! We’d love to meet and show you a demo: https://coteach.ai/districts 

Read the full IM Certified® announcement: https://coteachai.beehiiv.com/p/coteach-is-now-im-certified 

We’re proud of this milestone, and even more excited about what it makes possible for educators and students nationwide.