Put Quality Content on Page and Get links from high quality (high PR) sites to improve your page rank. First build page rank of home page because google passes page rank to deep pages from home page.Also , drive more traffic to your pages using articles.
Google page rank is just a recognition measurement device. Intended to rank and put website in the Google search index, Google page rank is given on scale of 0-10 where 0 is lowest likely score for a website and 10 is highest score possible.