Is it common to re-read entire sections of math? Whenever I study advanced math, I always find that I need to read a section two times over two days to understand any of it. This can even require more re-reads if the section is highly theoretical (ie. first exposure to precise limits). I spend about 10 minutes trying to prove each theorem/lemma, and usually fail :) Then during exam week, a third and final re-read will solidify the material and I will feel I really understand what is going on. Especially since I've already had practice with the exercises. Its really strange how it sort of grows on me. Great... but requires tremendous amounts of time. I can't help but wonder, are there people out there who can get math after one sitting? It really puzzles me how one can come up with the material that I have great difficulty understanding. I never have this difficulty in science. In under 1 hour and one reading, I completely understand a chapter. And I know other people in my class who struggle with science. So if they clearly show signs of being weak in science, am I showing signs of being weak in math?