The Add an activity or resource option lets you add an activity or a resource to your course site. Only people with the instructor, designer, or teaching assistant role can add activities or resources to a site.
choice (polling tool)
Add a resources or activity to your course site
Go to the course homepage and click Turn editing on.
Click Add an activity or resource link in the section where you want this item to appear.
Select your resource or activity, then click Add. The Edit Settings page of the resource or activity appears.
Click Save and return to course when done editing.