Free Open Educational Resources for Every Classroom
Thousands of openly licensed lessons, activities, and materials you can use, adapt, and share — no cost, no subscription, no login required.
Explore the Curriki Library →What is OER?
Quality learning materials, free and open
Open Educational Resources (OER) are teaching and learning materials released under open licenses, so educators everywhere can freely use them, adapt them for their students, and share them forward. Curriki is a nonprofit that has championed OER for two decades — putting equitable, high-quality resources within reach of every school, not just the well-funded ones.
Always free
Every resource is free to use — no paywalls, no trials, no per-seat fees.
Openly licensed
Use, adapt, remix, and share. Make it fit your students and your standards.
Standards-aligned
Materials mapped to real learning objectives across grades and subjects.
Built by educators
Created and reviewed by teachers who know what works in a classroom.
What you’ll find
A library for every grade and subject
Browse free lesson plans, full courses, open textbooks, activities, and assessments — from early elementary through high school.
How it works
From search to classroom in minutes
1 · Browse
Search the free library by subject, grade, or resource type.
2 · Adapt
Download and tailor any resource to your students — it’s openly licensed.
3 · Teach
Bring classroom-ready materials into tomorrow’s lesson at no cost.
Stay in the loop
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