Step 3: Creating Content Items
You may now select a type of content item and give it a name. In this case a text item is being created and called a "Lecture"
Clicking the create button will attach the content item to your course

You are able to add all of the items listed above but give them different names. For example you could create a "Text" type for "Assignments", another for "Lecture" and still another for "Greetings".
Once the Items have been created for the course you must assign them to the section, unit or topic where they should appear to the student. (See in step 4)