how much does it take to understand one exercise? Let's

>>2763124
As many as it takes to understand it

>>2763124
>do the exercise as written in the book
>once done, analyze it, see what you did wrong
>practice the point of the exercise again but with a different subject (not too similar but not too different)
>repeat step 2
>repeat step 3
>from one drawing to the other you should be making less mistakes
>do this a few times and once you get the main concept the exercise was trying to teach you move on with your life
>???
>profit.

>>2763124
>how much repetitions should I do before I memorize it?
12.

Then check to see if you've internalized the lesson. Repeat until you've succesfully done so.