Spark discussion, perseverance,
and understanding of mathematics.

IM K–12™ Math certified by Illustrative Mathematics®

IM Math is a problem-based core curriculum designed to address content and practice standards to foster learning for all. Students learn by doing math, solving problems in mathematical and real-world contexts, and constructing arguments using precise language. Teachers can shift their instruction and facilitate student learning with high-leverage routines to guide learners to understand and make connections between concepts and procedures.

Student engagement has gone through the roof. There’s a buzz in our math classrooms.

David P., Secondary Math Specialist, Tumwater Public Schools, WA

This is the complete, aligned, big-picture-driven curriculum we have been seeking for years.

Stefanie Buckner, Mathematics Curriculum Specialist, Buncombe County Schools, NC

...well designed …effective lesson structure and pacing.


This curriculum is brilliantly written. After teaching this program, I really felt it met the learning needs of our students.

Stephanie Marvicsin, Teacher, Newport-Mesa Unified School District, CA


Fully Aligned to College and Career-Ready Standards

Fulfilling standards to prepare students for success with mathematics.

Designed under the leadership of William McCallum, a lead writer of the Common Core, all IM curricula are fully aligned to the rigor and coherence of the standards. Our goal is to provide all students the skills they need to know, use, and enjoy mathematics.

Instructional Foundation

Research-driven, problem-based curriculum.

In a problem-based curriculum, students work on carefully crafted and sequenced mathematics problems during most of the instructional time. Teachers help students understand the problems and guide discussions to be sure that the mathematical takeaways are clear to all. In the process, students explain their ideas and reasoning and learn to communicate mathematical ideas. The goal is to give students just enough background and tools to solve initial problems successfully, and then set them to increasingly sophisticated problems as their expertise increases.

Mathematics is not a spectator sport. The value of a problem-based approach is that students spend most of their time in math class doing mathematics: making sense of problems, estimating, trying different approaches, selecting and using appropriate tools, and evaluating the reasonableness of their answers. They go on to interpret the significance of their answers, noticing patterns and making generalizations, explaining their reasoning verbally and in writing, listening to the reasoning of others, and building their understanding.

Open Educational Resource and Delivery Options

Multiple formats and platforms available for flexibility and accessibility.

IM Certified Partners provide access to the latest versions of IM Certified curricula through a freely available option as well as through for-fee print and digital platforms.

The Evolution of IM Curricula

Open Up Resources 6–8 Math 2.0 was authored by Illustrative Mathematics.

Illustrative Mathematics, authored, reviewed and approved all of the content contained in Open Up Resources 6-8 Math 2.0. OUR 6–8 Math 2.0 is a high-quality curriculum, and Illustrative Mathematics is proud of its collaboration with Open Up Resources, which brought one of the first full-course OER middle school math curriculum to students and teachers across the country. Please contact OUR for more information about their version of an IM-authored curriculum.

IM Certified Professional Learning

Improve instruction, streamline integration

IM Certified Professional Learning is designed to be deeply integrated with the curriculum. The program provides teachers and leaders long-term, sustainable support for improving instruction and learning.

Learn More



Start your IM Certified®
implementation today!