Well I think its pretty difficult to explain staff notations through forums.. I would recommend a book that I am using. It is called "Technique for modern guitar" its by Mel Bay. It comes in a series of gradrs 1 to 8. If you are absolutely new to staff notations, which I think you are, You should go for grade 1. If you already know a few scales and chords, I think u'll go through it pretty quickly. Staff notations really clear ur timing concepts.