Introduction
If you’ve heard the name Open Up Resources and wondered what it actually does, you’re not alone. Many teachers and parents come across it while searching for classroom materials, then find themselves unsure whether it’s a textbook company, a nonprofit, or something else entirely.
Open Up Resources is a nonprofit publisher that distributes free, standards-aligned curriculum to schools across the country. Its most well-known offering is a math program built for grades 6 through 12, though it also supports elementary reading and language arts. This guide breaks down what it offers, who benefits most, and how the related math resources fit together.
Math Resources for Students
Students and parents often land here looking for something specific: practice problems, homework support, or a way to review a lesson that didn’t quite click in class. Open Up Resources exists to fill that gap without a subscription fee.
Where to Find Free Learning Materials
The core materials are organized by grade and unit, so a student working through a specific topic can find matching lessons rather than scrolling through unrelated content. This structure matters more than it sounds like it should.
Practice Problems and Study Guides
Each unit includes practice sets tied directly to what was taught in class that week. That alignment is what separates it from generic worksheet sites, where the problems may not match the student’s actual curriculum.
Using Resources for Homework Help
A student stuck on a problem can usually trace it back to the specific lesson it came from, then review the worked examples before trying again. This cuts down on the guesswork that makes homework frustrating.
Staying Consistent With Daily Practice
Short, regular practice tends to help more than long cramming sessions. Ten focused minutes a few times a week builds retention better than a single rushed hour before a test.
Online Math Resources You Can Access Anytime
Not every family has access to printed textbooks at home, which is part of why online math resources matter so much. Everything on the platform is available digitally, which means a student can pick up where they left off from a school computer, a home laptop, or a shared family device.
Digital Platforms vs Printed Workbooks
Digital access solves a real problem: forgotten textbooks. A student who left their book in a locker can still open the same lesson from home, as long as they have internet access.
What to Look for in a Reliable Online Resource
A good resource should be free of intrusive ads, easy to navigate by grade and unit, and clear about who authored the content. Open Up Resources publishes its curriculum under an open license, so the source is always transparent.
Accessibility Features to Look For
Look for adjustable text sizes, screen-reader compatibility, and materials that work on tablets as well as desktops. These details matter for students with different learning needs.
Family and Home Access Options
Families can typically request access separately from teacher accounts, which is useful for households helping with remote learning or supplementing what’s covered in class.
Understanding Math Illustration and Illustrative Mathematics
This is where a lot of confusion starts. The math curriculum inside Open Up Resources for grades 6 through 12 wasn’t written by Open Up Resources itself. It was authored by a separate nonprofit called Illustrative Mathematics.
How Illustrative Mathematics Authors the Curriculum
Illustrative Mathematics authored, reviewed, and approved all of the content contained in the Open Up Resources 6–8 Math curriculum. Open Up Resources then handles the publishing, hosting, and distribution to schools.
Why the Partnership With Open Up Resources Matters
This split matters because it explains why you’ll see both names on the same materials. One organization writes the math; the other makes sure it reaches classrooms for free.
What Makes This Curriculum Different
The lessons are problem-based rather than lecture-based. Students work through real problems first, then the underlying concept is named and formalized, instead of being told a rule before seeing why it matters.
Quality Reviews and Ratings
Independent reviewers have rated the middle school version of this curriculum among the highest-scoring math programs available, based on how well it aligns with standards and supports actual classroom teaching.
What Is IM Learning?
“IM” is shorthand for Illustrative Mathematics, and IM learning refers to the instructional approach behind these lessons rather than a separate app or product.
The Problem-Based Learning Approach
Instead of starting with a formula, students are given a scenario and asked to reason through it. The formula or rule comes later, once students have already wrestled with the idea themselves.
How Students Learn Through IM
I remember helping a relative’s kid with a fractions unit built this way, and it initially felt backward — no rule was given upfront. But by the end of the lesson, she could explain why the rule worked, not just how to apply it, which stuck with her far longer than memorized steps would have.
Classroom Discussion and Collaboration
A lot of the learning happens through group discussion, where students compare different ways of solving the same problem before the class settles on the most efficient method together.
Building Confidence Over Time
Struggling with a problem before getting the answer is intentional. It’s meant to build reasoning skills, not just correct answers, which can feel uncomfortable for students used to being told the method first.

Exploring the Math ILC and Getting Access
Schools and families interested in these materials generally go through a straightforward registration process rather than a purchase.
Signing Up as a Teacher or Family
Teachers typically create a free account tied to their school, while families can request separate access to review the same lessons their child is using in class.
What You’ll Need to Register
Most registrations ask for basic information like a name, email, and school or district affiliation. No payment details are required, since the curriculum itself is free.
Support for Districts and Schools
Districts adopting the full curriculum can usually get implementation support, training materials, and guidance on pacing across a school year.
Where to Go for Help
For account issues or curriculum questions, checking the official site directly is more reliable than third-party summaries, since login steps and support options can change over time.
Practical Tips for Getting the Most Out of These Resources
A few habits make a real difference for students and teachers using this curriculum:
- Match practice sessions to what was covered in class that week, rather than jumping ahead.
- Bookmark the specific unit page instead of searching from scratch each time.
- Use the family access option if you want to follow along with what your child is learning.
- Check for updated editions, since curriculum content is occasionally revised.
Common Mistakes to Avoid
Some avoidable issues come up often enough to mention directly. Treating this as a typical textbook with answer keys upfront misses the point of the problem-based design. Skipping ahead without working through the reasoning steps also tends to backfire later, since later units build on earlier ones.
It’s also worth verifying you’re on the correct official platform, since curriculum names like this one are sometimes mimicked by unrelated worksheet sites. For the most accurate and current details, visit Illustrative Mathematics directly.
FAQs
Yes. It’s published by a nonprofit and made available under an open license, so schools and families aren’t charged licensing fees to use it.
The 6-12 math content is authored by Illustrative Mathematics, a separate nonprofit that specializes in curriculum design.
Yes, most versions offer a separate family access option so parents can review the same lessons their child is working through.
It spans grades 6 through 12, with additional elementary reading and language arts materials available separately.
No payment is required. Registration typically just requires basic contact and school information.