As this is essentially the same as adding a post I am going to refer you to that information.
The only difference is that you won’t see a place for adding tags or categories. That because pages have a different role to posts and therefore don’t get tagged or categorised in the same way.
You can however, have sub-pages and templates. The links to these sit in the right hand column and allow you to create a Page say “About” and then add sub pages about say the staff. About John, About Karen, etc…
Templates are created at the design stage and allow you to style a page to do certain things. e.g. Taking a look at tags again! We could create a page called tags and then use a template to list all the tags. That is a simple use of the template function but if you want to know more talk to your designer.
