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IM K–12 Math

Spark discussion, perseverance, and understanding of 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. 

New! Just-in-time adaptation packs to support unfinished learning for fall 2020

“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 

Start your IM Certified implementation today!

Now more than ever is the time to get started with IM K–12 Math with unfinished learning, distance learning, and family supports. Learn more here.


A coherent sequence of mathematical ideas is critical in the foundational development of students’ mathematical understanding. The IM K–5 Math beta curriculum will provide teachers with coherently sequenced materials based on the standards and research-based learning trajectories to support students’ learning in these early years. Coming in 2021.

IM 6–8 Math v. III is focused on supporting teachers in the use of research-based instructional routines to successfully facilitate student learning. This is the top-rated middle school curriculum across all programs reviewed by EdReports, an independent nonprofit that reviews K–12 instructional materials for focus, coherence, and rigor.

Designed for high school learners, IM 9–12 Math v. I encourages the problem-solving skills students need to better understand the real world. This EdReports top-rated curriculum includes Algebra 1, Geometry, and Algebra 2.




Fully Aligned to College and Career-Ready Standards

Fulfilling standards to prepare students for success with mathematics

Designed under the leadership of Common Core chief author William McCallum, 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.