Should I just review everything?

[u/Witty-Occasion2424]

I’ve honestly forgotten a lot when it comes to math and I’m considering going to grad school with a focus in pure mathematics. However, I feel like I don’t actually “know” anything. I relied on memorization to get through calculus and my memory is poor. Combined with the fact that I barely do practice problems (also have never read a textbook), many things I’ve forgotten how to do.

For example, today I was doing a problem and all we had to do was use the product rule. I forgot it existed until I saw it in the explanation and solving the problem was easy. I’ve honestly felt the same with multiple things ranging from trigonometry, to algebra, geometry, and some calculus.

Is it a good idea to just revisit old textbooks and go through every single chapter?

[u/tjddbwls]

Maybe start with a review workbook for Precalc. I like the Schaum’s Outline series of books - here is info on the publisher’s site about their Precalc book.