<p>I'm sorry, I didn't realize you had nothing to go on. Go to the links ziddy gave and <a href="http://eanes.tx.schoolwebpages.com/education/components/docmgr/default.php?sectiondetailid=4271&sc_id=1179172325%5B/url%5D">http://eanes.tx.schoolwebpages.com/education/components/docmgr/default.php?sectiondetailid=4271&sc_id=1179172325</a> is a good website too because it gives notes and links.</p>