Teflpedia has the following namespaces:
Main is the default namespace. Pages names without colons in them are in the Main namespace which is for encyclopedic articles.
Help: for site help. Eg Help:Editing
Teflpedia: for pages about the Teflpedia project. Eg Teflpedia:Teachers' room
Debate: for debating!
Lesson: for lesson materials and ideas
Essay: for single author essays. If you want to be the only author of a page and have no collaborative help from others you can begin the page name with Essay:"Title of your essay here". Alternatively, you can make a page a subpage of your User page.
User: for user pages. Eg User:Bob M is Bob M's page where among other things he can introduce himself to other Teflpedians (and the world at large; there is no private space on Teflpedia). Subpages of User:Bob M are all Bob's own workspace (but they are not private), eg User:Bob M/Intermediate Conversation, Lesson 5 (red in this example because he has not created that page)
Template: for content that will appear on more than one page or be used as boiler plate text. See Help:Template
Category: for category pages. See Help:Editing#Categories
Talk (Discussion) pages
Each namespace has a corresponding Talk namespace for editorial discussion of page content. When you add something on a Talk page, please end (sign) with"--~~~~" (or click the Signature button, second from right at top of edit box). This helps us know each other.
User talk: for talking to individual users. Eg User talk:Bob M is for talking to Bob M.
Click thetab at top of any page to see it's talk page.
Special: pages (Special:RecentChanges, Special:MultiCategorySearch, Special:Search, Special:Preferences, etc.) have no talk pages. Discuss them, indeed anything you have a question about, on Help:Support.