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MIT OpenCourseWare
By Massachusetts Institute of Technology. Visit MIT OpenCourseWare
Desk research from the maker's own pages. Not yet tried by us. Checked 2026-10-24.
MIT's free library of materials from more than 2,500 of its real courses: lecture videos, notes, problem sets and exams, from intro physics to AI. There is no sign-up, no start date and no certificate. A curious teen can watch a full MIT lecture series, try the problem sets and check the posted answers. It is self-study only; there is no teacher, grading or help.
Our take: Excellent for a self-motivated teen who loves a subject; skip it for kids who need structure or feedback.
Checked in a browser
A browser check on 2026-10-25: what loads, the ads and trackers we saw, and what a child meets first. Not a hands-on test.
| Child safety: 4 out of 5 | No ads or chat; this is college material with many links out to social and partner sites. |
|---|---|
| Data: 3 out of 5 | Google Analytics (including its ad-reporting host stats.g.doubleclick.net) and Crazy Egg click tracking loaded; no ad networks served ads. |
| Ease: 3 out of 5 | Clear buttons and big text, but the courses are college level and the topics are for adults. |
| Cost honesty: 4 out of 5 | Free with no registration; a separate giving site is linked. |
What we found
- Contacted 11 outside sites; Google Analytics, Tag Manager and Crazy Egg were the known ones.
- The only doubleclick host was stats.g.doubleclick.net, Google Analytics' reporting host; 0 ad frames.
- Page text: 'Free lecture notes, exams, and videos from MIT. No registration required.'
- Links out to 13 sites including YouTube, Facebook, Bluesky and Mastodon.
From the test: Free MIT course materials with light tracking, best for older teens working with a grown-up.
| Ages it suits | about 14+ (college-level material) |
|---|---|
| What its terms say about age | Not stated in terms. No account is needed to use OCW. (terms) |
| Price | Free. Free; no account needed (Oct 2026). Materials are under a Creative Commons non-commercial license. |
| Works on | Web |
| Account | No account needed |
| Ads | None |
| In-app purchases | None |
| The AI in it | No AI. |
What's good
- Completely free, no account
- Real MIT lectures and problem sets with answers
- No ads or purchases
Watch for
- College-level and hard; no help if stuck
- No credit or certificate
- Uses Google Analytics tracking
Data and privacy
OCW uses Google Analytics with demographics and interest reporting (which draws on Google's interest-based ad data) and cookies, but says it does not get personally identifying information from it, and cookies are not required to use the site. Read the privacy policy.
Does it work?
No independent study of learning outcomes found; the maker's own claims only (500 million learners and educators since 2001).
In the Big Index
- On the list 23 best free online courses for teens
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Where these facts come from
Prices, terms and features change. Nobody paid to be listed, nothing here is an affiliate link, and Peabody never rates itself. Where we and the maker disagree, the maker's own pages are the ones to trust.