In order to assign courses you need to have the correct level of admin permissions.
Follow these steps to assign a course to a user:
Select "Manage" at the top of the screen
In the 'Manage users chart' section, select 'Manage users'
Locate the relevant member of staff and select 'Manage user'
In the 'Assignments Dashboard' section, select 'Manage assignments'
Select "Add assignments"
Select the relevant course(s) and set the deadline
Select "Continue"
Enter a personal message to the user (optional)
Select "Add assignments"
Any assigned course will appear on the Home page under the 'Mandatory Banner'.