[MikeTheGreat]

I'm wondering - is this a genuine request, or a snarky, implicit reference to an online resource for learning math somewhere?

I'd love to know about the existing resource, if it exists. (The only thing that comes to mind is Wolfram Alpha, which didn't seem 'systematic' the last time I skimmed the main page)

[house9-2]

Maybe they were referring to Khan Academy?

https://www.khanacademy.org/math

[pirocks]

I think Khan academy for higher math/physics/chemistry /CS would be invaluable. Maybe it could be crowdsourced in some way?

[kebman]

Well, there's always 3Blue1Brown: https://www.youtube.com/channel/UCYO_jab_esuFRV4b17AJtAw Take a look at his course, Essence of Calculus: https://www.youtube.com/watch?v=WUvTyaaNkzM&list=PLZHQObOWTQ... I'm not fluent in math, but I find it fascinating to watch, for some reason. NancyPi is also great: https://www.youtube.com/channel/UCRGXV1QlxZ8aucmE45tRx8w Oh, and don't forget the Mathologer: https://www.youtube.com/channel/UC1_uAIS3r8Vu6JjXWvastJg What a great guy! While I'm at it, go watch Numberphile too: https://www.youtube.com/user/numberphile Is there anyone I forgot? :D