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Open Educational Resources (OER)

Open Educational Resources (OER) are teaching, learning, and research materials that are free to access, adapt, and share thanks to open licenses that explicitly permit retention, reuse, revision, remixing, and redistribution —the “5 R rights”.

Why Use OER?

  • Cost savings for students by replacing high-priced textbooks with free alternatives.
  • Pedagogical freedom for instructors to customize, localize, and update materials.
  • Equitable access for learners worldwide, removing paywalls and permission barriers.

Major OER Platforms & Repositories

PlatformPrimary FocusKey FeaturesLicense Scope
MERLOTMultimedia Educational Resource for Learning & Online Teaching100,000+ peer-reviewed learning objects across disciplines; member ratings and commentsVaries; most under Creative Commons
MIT OpenCourseWareFull course content from MIT (syllabi, lectures, assessments)2,600+ courses; high-quality STEM & humanities materials; translated into multiple languagesCC BY-NC-SA 4.0
OER CommonsAggregator of lesson plans, textbooks, simulations, etc.Advanced search, alignment to curricula, authoring & remix tools, hubs for institutionsPredominantly CC licenses
Open Textbook LibraryPeer-reviewed open textbooks1,400+ titles; faculty reviews; PDF & editable formatsCC BY or similar
Wikimedia Commons95+ million media files (images, audio, video)Free cultural & educational media; integrates with Wikipedia; category and quality ratingsCC BY, CC BY-SA, or public domain
OpenStaxHigh-quality college textbooksProfessionally developed textbooks with ancillaries; print copies at low costCC BY 4.0
LibreTextsDynamic, modular textbooks & homework systems400+ books in STEM, social sciences, humanities; Remix tool; integration with LMSCC BY-NC-SA (default)
Teaching CommonsAggregated scholarly teaching materials from university repositoriesFaculty-authored syllabi, modules, multimediaVaries; mostly CC licenses
NOBA ProjectPsychology textbooks & modulesCustomizable texts authored by scholars; instructor ancillariesCC BY-NC-SA
Open Case StudiesReal-world case studies (public policy, health, environment)Editable case repositories; interdisciplinaryCC BY

Evaluating & Adopting OER

  1. Search strategically: Start with discipline-specific hubs or use OER Commons’ aggregated search.
  2. Check licensing: Confirm the Creative Commons license permits your intended adaptation.
  3. Assess quality: Look for peer reviews (MERLOT, Open Textbook Library) and version history.
  4. Align to learning outcomes: Map OER content to course objectives and accreditation requirements.
  5. Plan accessibility: Ensure materials meet WCAG standards; many repositories flag accessibility features.

Creating & Sharing Your Own OER

  • Author in open formats (Markdown, HTML, Pressbooks).
  • Apply a suitable CC license (e.g., CC BY for maximal reuse).
  • Deposit in a visible repository (OER Commons, institutional repository, MERLOT).
  • Supply editable source files (e.g., .docx, .xml) to enable remixing.