When you are adding or editing a text resource, you have to fill in the following fields:
A short name of the resource. This will be displayed on the course's homepage.
You may type the summary of the resource here. This will be displayed on the Resources page.
Type the full text of the resource here.
Choose the type of formatting that will be used for this resource. (You can read about formatting options here)
These settings can be hidden/shown by clicking the button labeled Hide settings or Show settings.
Usually, resources are displayed in a normal framed window with the Moodle navigation controls in the top frame. If you choose, you can remove this frame and have the resource fill the window like a normal web page.
Visible to students
You can hide the resource from students by selecting "Hide" here. It is useful if you wouldn't like to make the activity available immediately.