By recommend, I mean content you actually find to be high quality, well done, and easy to absorb and follow. By relearn, I mean I have forgotten everything I ever learned in high school.
89 points
Kahn academy. It’s free and goes as deep as you want. I had to brush up on some stuff and it was great.
33 points
19 points
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6 points
44 points
Helped me get through my engineering degree. Absolutely the best maths education I’ve ever seen.
2 points
23 points
As others said, Khan academy, but in the event that you need something even more broken down, patrickJMT on YouTube is a godsend.
5 points
15 points
I used Khan Academy when I reentered uni as a mature-age student and found it very helpful
4 points
If you graduate to college level you can try Opencourseware -> https://en.m.wikipedia.org/wiki/OpenCourseWare
