@AnneWalker ...

Just to briefly expand on what @Gabriel33 has already said, these are the Guides you can use:

• Make sure your page is published: How do I publish or unpublish a page as an instructor?
• Set page as a "Front Page": How do I set a Front Page in a course?
• Select page to use as the home page: How do I change the Course Home Page?

I hope this extra bit of information will be helpful to you.  Sing out if you have any questions...thanks!