PRONUNCIATION & PHONETICS

First of all I have to say that the pronunciation is very important because if someone goes abroad and speak a gramatically corrected English but with a bad pronunciation nobody will understand him/her. So it is important to improve it.
I use phonetic symbols only for difficult words. They help me in learning the right pronunciation of new or diffcult words. Usally I write the phonetic symbols over the word or near it, at the side, in order to see it quickly when I read.
Usually I learn the correct pronunciation by listening to my teachers. Sometimes I read it into the vocabulary if teacher have not said it; every vocabulary quotes phonetics symbols.