depend. by learning english i learn 50 words a day for a duration of 3 months. At the end of this rude period its like i learnt 20 words a day. pretty useful. But after 2 years you have to do it again with another kind of vocabulary... the ones you forgot .Meanwhile you learn by talking thats all. If you want to learn math you ought to have a picturized memory instead of a short term or long term memory. I tend to learn by picturizing what i see when its about equation or HTML script for example .
Well, I guess, that the first thing about learning methods is that they should be thought of not during exams period but during studying time proper . Unfortunately I myself got the truth too late
during my school days, when its a "hell day(exam day)" i usually review my notes 1-2 hrs before the hell time. furtunately, i passed all my exams during my school days
When it comes to taking exams I review my notes and compile a list of the common question that will be on the exam then I compare it to a list of answers. It works for me.
they said its good to study before dawn.... you memorized the lessons and stuffs quickly during that time.... it worked for me