There are different ways to learn, some work better for certain people than others.

I would think that the best way to learn is neither of these options, but to be taught how to do the work by someone who understands (like a teacher) and then made to do it after it has been thoroughly explained to you and practiced with you.

That’s what works best for me anyhow, that or literally reading the textbook, lol, but that’s less efficient time-wise.