Take a university course on YouTube, start to finish

Quick answer

Universities post whole semesters of lectures online. Lots of people start one.

Few get past lecture four. Here's how self-learners say they finish.

What 125x is: 125x is a web app at 125x.app. You connect your YouTube subscriptions, and it gives you a feed of the latest videos from the channels you follow, each with a summary: a verdict, the 5 key takeaways, and the spoiler, plus Actionable and Lessons tabs with more tips. You read that and decide what's actually worth opening.

Open 125x

Pick one real course

Look for courses with a syllabus, notes, assignments and exams, like those on MIT OpenCourseWare (MIT OpenCourseWare).
Check prerequisites before you start.
Follow the course order. Skip hopping between random lecture videos.

Do the work

Do the problem sets. Readers say that's what turns lectures into learning.
Take the exams under a timer and grade yourself against the solutions.
Keep a notebook per lecture.

Keep pace

Pick two or three fixed lecture slots a week.
Watch at a faster speed, slow down for proofs and examples.
Quiz yourself after each lecture. See test yourself after videos.
Finish one course before starting another.

Know what you get

Open course materials don't come with credit, grading or a certificate (MIT OpenCourseWare). The knowledge is the point.

How 125x fits

If you follow university channels, 125x gives each new lecture a summary, so you can preview what's covered and review it after.

FAQ: questions people ask

Can you learn a university course from YouTube?

Yes, especially with courses that publish a syllabus, assignments and exams alongside the videos.

Do I get credit for MIT OpenCourseWare?

No. OCW provides materials without credit, grading or certificates.

How do I finish an online lecture course?

Follow the syllabus, schedule fixed sessions, do the problem sets, and finish one course before starting another.