IM 9–12 Math™ certified
by Illustrative Mathematics®

IM 9–12 MATH

IM 9-12 Math logo

Meets all expectations in all three EdReports Gateways

Learn more about IM 6–8 Math™ v.III and IM 9–12 Math™ v.I with this in-depth look at our 6–12 curriculum. Examine the structure of a lesson through the lens of the design features of the curriculum and with a focus on the philosophy and instructional shifts. Learn about the resources available around student understanding, discourse, planning, assessment, and access for each student.

I have used the IM Algebra I curriculum this year. It has been such a rewarding and amazing experience for my students—I feel like they have progressed so much more in their mathematical understanding. The quality of my instruction and the quality of intervention in my immersion class have improved so much, and it is entirely due to the thoughtfulness and the quality of your curriculum.

— Jim Dougherty, Mathematics Teacher, Cincinnati, OH

The curriculum does a fantastic job of spiraling previous content into current units, which means I do not have to find other ways to incorporate the ideas—IM does it for me! This curriculum allows students to dig deep in to math in a fun and practical way and I get to be a guide that cheers them on!

— Caitlin Craft, Math Teacher, Albuquerque Public Schools, New Mexico

IM 9-12 Math has spurred a rapid paradigm shift in how I go about teaching and learning mathematics. Furthermore, my students have developed a deeper understanding of mathematical concepts through making meaning of their conversations with each other and myself about the topic at hand.

— Joseph Dziuba, Math Teacher, New Brunswick Public Schools, New Jersey

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A coherent progression of learning

IM K–12 Math™ is fully aligned to the focus, rigor, and coherence of the standards, and has been given the stamp of approval by EdReports, earning perfect scores in the areas of Focus & Coherence and Rigor & Mathematical Practices. The scope and sequence of units, activities, and representations are designed to help students develop a deep understanding of mathematical concepts, build fluency with procedures, and solve mathematical problems that reflect their lived experiences.

Academic language development

Math vocabulary is developed through the process of actively exploring and learning mathematics. Students make sense of mathematical concepts using informal language before academic terms are introduced. Embedded within the curriculum are Mathematical Language Routines to support academic language development for all learners. 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. 

Culturally responsive pedagogy

Materials are designed to affirm students as they build positive mathematical identities. Units and lessons begin by inviting students to use their prior mathematical knowledge, funds of knowledge, language, and culture to make sense of new mathematical concepts. Activities offer collaborative learning opportunities and instructional routines that center student thinking and encourage students to bring their whole selves to math class. Grades K–5 courses (and coming soon to 6–12 courses) include problem-solving contexts that positively reflect ethnically diverse cultures and support the implementation of culturally relevant and responsive pedagogy.

Teacher learning

Units and lessons include narratives that describe the mathematical work that will unfold, and activities and lessons include a synthesis that assists the teacher with ways to help students incorporate new insights gained into their big-picture understanding. Formative assessments help create clear pathways to address student outcomes. Teacher-facing materials support teachers to develop, refine, and reflect on instructional practices.

A High School Curriculum That Tells a Story

Teacher-tested, standards-aligned, and research-based

Designed for high school learners, this curriculum encourages the problem-solving skills students need to better understand the real world. The story of each course is told in units; each unit has a narrative that describes the mathematical work that will unfold in that unit. Each lesson in the unit also has a narrative.

IM 9–12 Math meets expectations in all EdReports Gateways. EdReports is an independent nonprofit that reviews K–12 instructional materials for focus, coherence, and rigor. Read the full analyses for Kendall Hunt and Imagine Learning.

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Already using IM, but want to learn more?

Reach out to your IM Certified partner to schedule professional learning, order print materials or digital subscriptions.


Featured IM 9–12 Math Blog Posts

Inviting Students to the Mathematics
A Thread Through Early Algebra 1
Building Equitable Learning Environments for Each Student
Leveraging IM 6–12 Math Teacher Materials to Enhance Access to Grade-Level Mathematics
Differentiating Instruction with IM 6–12 Math™
Proof in IM’s High School Geometry (A Sneak Preview)
IM Certified® IM 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.


Our partners provide the ideal experience with our curriculum.

IM Certified Partners share our commitment to providing the IM Certified Curriculum to all teachers and students as it is meant to be experienced, in the format they need to ensure success.

Imagine IM, from Imagine Learning, offers the comprehensive IM® v.360 curriculum with enhanced resources. Imagine IM includes classroom-ready print books designed for usability. The digital experience offers customizable lessons, interactive tools, assessments, and exclusive features like digital centers and videos. Imagine Learning is IM’s original premium partner and supports districts to ensure implementation with integrity.

Kendall Hunt is an IM Certified Partner and print provider of the upgraded IM® v.360 curriculum. The Kendall Hunt version will be the pure, untouched print version – one that is unaltered, unedited, and aligns directly with IM’s free digital version. In addition to this upgraded print version, Kendall Hunt offers professional learning opportunities aligned with customer needs.

IM® v.360 powered by Kiddom unites ground-breaking technology with Illustrative Mathematics’ high-quality curriculum.  Kiddom empowers educators to customize, implement, and measure the impact of IM® v.360 on a simple, powerful platform. A full suite of digital tools and functionality creates dynamic, engaging learning experiences for students, while real-time data supports informed instructional choices.


Fill out this form, and an IM Certified Partner will contact you to discuss your options for accessing IM 9–12 Math.

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

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

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

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

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

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

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

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

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

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.