Hello there, @RobertBohn ...
@RobertBohn wrote:
how do i make the announcement i create active?
Here are a couple resources for you that should help:
Also, if your "Announcements" course navigation menu (on the left side of your screen) has a crossed-out eye icon next to it, you may need to make that menu visible to your students. You can do that by following the steps in this Guide: How do I manage Course Navigation links?.
how do make my whole course section active ?
If you are asking about publishing a course so that your students have access to it, you can follow the steps in this Guide:
I hope I've interpreted your question correctly. If I've not fully answered your questions, please provide additional information so that Community members can help you out. Thanks much!