No. 5 of 27 ·K-12 Curriculum Platforms

Illustrative Mathematics

Web

Freedom report

Two barsScore 6.4

Free tierA free tier is on its own pricing page
Open codeNo open-source code on record
Runs widely1 of 6 device platforms
DocumentedPlans, terms and facts published

Illustrative Mathematics is ranked #5 of 27 in k-12 curriculum platforms on Freedom251. It runs on Web. There is a free plan.

Illustrative Mathematics plans and pricing

All plans

IM Math v.360 OER Free Full TK–12 curriculum online at no cost · downloadable and printable teacher and student PDFs · no time limit illustrativemathematics.org · 3 Oct 2026

Compared on k-12 curriculum platforms

Free plan: Yes
Grade band: k-12
Subject scope: single_subject
Standards alignment: Yes
Teacher tools: Yes
Built-in assessments: Yes
Offline access: Yes

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The record

Product: IM Math is a problem-based, full-year core mathematics curriculum for transitional kindergarten through grade 12.
Learning approach: Students solve meaningful problems, explain their thinking, compare strategies, and connect mathematical ideas across lessons, units, courses, and grade levels.
Curriculum sequence: IM Math v.360 provides a coherent sequence from transitional kindergarten through Algebra 2.
Built-in resources: The curriculum includes discussion routines, supports for English learners and students with disabilities, and unit assessments, session checkpoints, and lesson cool-downs.
Access: AccessIM provides the complete curriculum online for free, including full lessons, implementation resources, and downloadable, printable PDFs for teachers and students.
Paid options: IM Certified partners offer print materials and enhanced digital platforms; the site directs schools and districts to partners for pricing rather than listing prices.
Partner platform features: Enhanced digital options from Imagine Learning and Kiddom include student rostering and account management, assignment tools, data reporting, and progress monitoring.
Integrations and partners: The listed curriculum distribution partners are Imagine Learning, Kendall Hunt, and Kiddom; the site also lists supplemental tools and professional learning partners.
Standards: IM Math is aligned to the Common Core State Standards for Mathematics, and the site says IM v.360 holds all-green EdReports ratings across grade bands and gateways.
Support: Illustrative Mathematics and IM Certified partners offer professional learning, leadership support, and implementation services for schools and districts.
Privacy: The current terms state that the main site does not collect student information and that student-facing curriculum content can be accessed without registration or login.
Privacy policy scope: The privacy policy says its covered websites are not designed to provide content directly to students or collect student information, and says personal information is not sold to third parties.
Organization: Illustrative Mathematics is a nonprofit organization that became independent in 2013 after beginning at the University of Arizona in 2011.
Founded: 2011
Price from: Free

Where it ranks on Freedom251

Best K-12 Curriculum Platforms in 2026#5 of 27

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Sources

illustrativemathematics.org/frequently-asked-questions/· checked 3 Oct 2026
illustrativemathematics.org/math-curriculum/· checked 3 Oct 2026
illustrativemathematics.org/partners/· checked 3 Oct 2026
illustrativemathematics.org/terms-of-use/· checked 3 Oct 2026
illustrativemathematics.org/privacy-policy/· checked 3 Oct 2026
illustrativemathematics.org· checked 28 Sept 2026