IM 9–12 MATH
Illustrative Mathematics’ collaborative model invites students to talk and write about math, listen to each other’s ideas, justify their thinking, and critique the reasoning of others to further develop their mathematical understanding.
IM 9–12 Math has earned top ratings from EdReports in every review category.
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Kendall Hunt
IM v.360 AGA
Ready to get started with IM 9–12 Math?
IM 9–12 v.360 MATH DESIGN FEATURES
A coherent progression of learning
IM v.360 is fully aligned to the Common Core State Standards and provides the proper focus, rigor, and coherence required to achieve grade-level mathematics. Courses, units, lessons, activities, and representations are sequenced to help students develop an understanding of mathematical concepts, build fluency with procedures, and solve mathematical problems that reflect their lived experiences. Each unit and lesson is designed to build on what students previously learned and is part of a mathematical story that spans units and grade levels. This coherence allows students to view mathematics as a connected set of ideas.
Academic language development
Students acquire mathematical language by actively exploring and learning mathematics. Tasks encourage students to use informal language while making sense of concepts, and introduce academic language as they strengthen their mathematical understanding. The curriculum provides opportunities to develop mathematical language through social interaction and collaboration, and through the use of math language routines (MLRs). These routines also provide opportunities for English learners to engage in the specialized academic language demands of reading, writing, speaking, listening, conversing, and representing in math.
Instruction that Honors Students’ Experiences
Our approach helps students build positive mathematical identities by offering learning opportunities that reflect their own backgrounds and experiences, while also giving them opportunities to learn from the perspectives of others. In grades 9–12, problem-solving contexts are thoughtfully chosen to connect to students’ everyday lives, fostering a welcoming learning environment and drawing on what students already know about math, language, and the world around them. Throughout the curriculum, students engage in collaborative learning that centers their thinking and supports meaningful participation for every learner.
Embedded teacher supports
Each unit, section, and lesson begins with a narrative that describes the mathematical work ahead, how it connects to prior learning, and how it prepares students for what comes next. Lessons and activities end with a synthesis to help teachers address any misconceptions or questions students may have encountered along the way. Throughout lessons and activities, teachers will find guidance on supporting a wide range of learners—through embedded language supports, UDL guidelines, and enrichment opportunities. Finally, teachers are invited to develop and refine their practice with reflection questions centered around math content, student thinking, and instructional decision-making.
A High School Curriculum That Tells a Story
Teacher-tested, standards-aligned, and research-based
Designed for high school learners, IM 9–12 Math v.360 encourages the problem-solving skills students need to better understand the real world. The story of each course is told in units. Each unit and lesson within a unit includes a narrative that describes the mathematical work that will unfold.
IM 9–12 Math AGA earned EdReports’ highest ratings across all three review gateways: focus and coherence; rigor and mathematical practices; and teacher and student supports. EdReports is a highly regarded independent nonprofit that reviews K–12 curricula for standards alignment and quality.
Ready to Get Started with the IM Certified Experience?
Explore IM’s K–12 Math Curriculum
IM® K–12 Math is a free, open educational resource (OER) built to help students learn math by doing math. Access complete lessons online and download printable PDFs at no cost through AccessIM.org.
Connect with an IM Certified® Partner
Looking for printed materials or enhanced digital platform access? Explore options through our IM Certified® Curriculum Distribution Partners to request samples or purchase materials tailored to your school or district’s needs.
Engage in Professional Learning
Strong implementation starts with strong support. Educators and schools can schedule IM Certified® Professional Learning through an IM Certified partner or request professional learning directly from IM.
Implement with Confidence
Bring IM’s research-backed, standards-aligned curriculum to life in your classrooms. Whether you dive in on your own or with support, our Quick Start Guide gives you clear steps, tips, and resources to get up and running.
Have clarifying questions?
Want a more in-depth conversation about curriculum access, digital platforms, or professional learning options? Schedule a conversation with our team.
Already using IM Math, but want to learn more?
Unlock the full potential of IM Math with curriculum-based professional learning—now available directly from IM. For print materials, digital subscriptions, and expanded professional learning opportunities, connect with an IM Certified partner.
IM 9–12 MATH FEATURED CONTENT
Featured IM 9–12 Math Blog Posts
While families arrive with different school experiences and perspectives on what “doing math” means, they often share common questions: “What do I need to know to set my child up for success in math this year?” and “How can I continue to support them throughout the school year?” Hosting a Family Math Night can answer these questions and help bring a school community together.
Read More
Math teachers can talk all day about math! We get super excited when we encounter someone else who enjoys these conversations as well.
But too many of our students don’t get to experience that joyful discourse, which limits their understanding of and positive experiences with math.
Read More
All students can be successful in mathematics. For most mathematics educators, we lean into this. We believe that all students can learn mathematics, that they can be successful. However, as we focus our lens on the word all, what do we see?
Read More
Discover more on the IM Certified® Blog.
IM Certifed Professional Learning
IM Professional Learning for mathematics is deeply integrated with the curriculum. The program provides teachers and leaders long-term, sustainable support for developing, refining, and reflecting on instructional practices.
IM CERTIFIED® CURRICULUM DISTRIBUTION PARTNERS
IM Certified curriculum distribution partners provide the only commercially distributed versions of IM 9–12 Math v.360 certified by Illustrative Mathematics.
Our partners offer the ideal curriculum experience because they are committed to providing IM Certified curricula to all teachers and students as IM intends it to be experienced, in the format needed to ensure success.
Choose an IM Certified Curriculum Distribution Partner
Submit this form and an IM Certified curriculum distribution partner will contact you to discuss your options for accessing IM 9–12 Math v.360.
An Expert-Authorized Curriculum
We're Dedicated to Teacher and Student Success
Our curricula are designed by respected thought leaders who share IM’s goal
to create a world where learners know, use, and enjoy mathematics.
William G. McCallum
CEO & Co-Founder
Bill McCallum has dedicated his life to helping teachers, educators, mathematicians, and policymakers show fidelity to both mathematical coherence and student learning.
He is an Emeritus Distinguished Professor of Mathematics at The University of Arizona, where he researches number theory and arithmetical algebraic geometry, authors textbooks, and advises researchers and policymakers. Bill’s work as a lead writer of the Common Core State Standards in Mathematics earned him the Distinguished Public Service Award from the American Mathematical Society and the Dolciani Award from the Mathematical Association of America.
As President and co-founder of Illustrative Mathematics, he chairs the Board of Directors where he helps craft the strategic direction of the organization and contributes to the curricula; he also represents IM to funders, at speaking events, and in workshops.
Kristin Umland
President and Cofounder
Kristin Umland believes that by coordinating the expertise of teachers, mathematicians, mathematics educators, and business professionals, we can help all students realize their mathematical potential.
Before joining the IM team, she was an associate professor in the Department of Mathematics and Statistics at the University of New Mexico (UNM). After joining UNM with a PhD in Mathematics, she carried out research in mathematics education, taught pre-service and in-service elementary and secondary teachers, and conducted education outreach at the local, state, and national level. A recipient of both the Louise Hay Award and the AMS Impact Award, Kristin’s goal has always been to improve the mathematical and pedagogical quality of children’s learning experiences.
Kate Nowak
Director 6–12 Curriculum, IM 9–12 Math™ v. I
Kate is a writer, teacher, and curriculum designer. After a successful eight years teaching high school mathematics and writing the popular blog f(t), she transitioned into a career in curriculum design.
Kate was the instructional lead author of the IM 6–8 and IM geometry, algebra 1, and algebra 2 curricula, and loves leading teams to create products that help teachers and students know, use, and enjoy mathematics.
Yenche Tioanda
Algebra 1 Lead, IM 9–12 Math™ v. I
Yenche is passionate about learning and helping others learn. Her adventures in mathematics education began in Philadelphia, where she taught high school students as a member of Teach For America and later served as a founding teacher of Science Leadership Academy.
Since then, she has strived to create meaningful learning experiences—in mathematics and beyond—as a curriculum designer, leader of professional learning communities, academic director, and consultant to schools and non-profit organizations.
Yenche served as the lead author of the grade 6 course in the IM 6–8 curriculum, the lead for Algebra 1 in the IM 9–12 curriculum, and a writer for the IM K–5 curriculum.
Yenche holds a BA in Architecture from Washington University in Saint Louis, an MArch from Harvard Design School, and an MS in Education from the University of Pennsylvania.
Ashli Black
Algebra 2 Lead, IM 9–12 Math™ v. I
Ashli is inspired by doing math with other teachers, discussing classroom practice, and reading what research tells us about how to best support student learning. She began her education career as a high school teacher in Washington State. She is a national board certified teacher and an alumna of the Park City Mathematics Institute.
Ashli was the lead writer of the grade 8 and Algebra 2 IM curricula.
Tina Cardone
Geometry Lead, IM 9–12 Math™ v. I
Tina spent more than 10 years teaching high school math at public schools in Massachusetts. Active in the online math community, she organized the ideas of her Twitter network into the book Nix the Tricks in 2013. She also published a second edition in 2015. Tina has presented about nixing tricks in the mathematics classroom and language routines to support student learning at regional and national conferences.
As geometry lead at IM, Tina is excited to bring her experience with teaching conceptually and making math accessible for all students to the IM curricula.
David Petersen
Statistics Lead Writer, IM 9–12 Math™ v. I
Currently based in Ohio, David organizes annual conferences that bring math teachers together offline where they can share insights and expertise, and build real-world communities. He also enjoys spending time with his two young children and reading comic books.
David spent ten years teaching high school math in Tennessee and Missouri before joining the IM team. He is dedicated to helping people explore connections among concepts to better understand how math relates to real-life experiences.
Jennifer Wilson
High School Professional Learning Lead
Jennifer enjoys learning alongside the IM community as a professional learning facilitator and writer. She previously taught math in Mississippi for 25 years. She is a national board certified teacher and received the Presidential Award for Excellence in Mathematics and Science Teaching in 2011.
Jennifer thinks a lot about how we might slow down and savor learning math through questions, connections, and collaboration. She enjoys reading, hiking, running, and eating slow food with family and friends.
Liz Ramirez
VP of Implementation Programs
Liz unequivocally believes that education is an essential means of empowerment. This conviction guides her passion for advancing access and equity in the field of mathematics education for students and for teachers.
Liz led the strategic direction and development of IM’s research-based frameworks for enhancing access for both English learners and students with disabilities within IM K–12 math. The associated resources and professional learning have equipped IM teachers with math language routines that facilitate discourse and language development, as well as access-supporting instructional strategies grounded in the Universal Design for Learning guidelines.
Liz also managed several projects focused on the development of tools, resources, and guidance to help districts establish the conditions necessary to successfully implement the IM curriculum.
As the vice president of implementation programs, Liz leads the strategy and development of IM programs for teachers, coaches, instructional leaders, and partner organizations. Liz and her team are committed to the continued advancement of IM’s professional learning for teachers and support for the districts and organizations that serve them.
