Please follow the adding students to your courses instructions for anyone who is or will be officially registered for credit!
For others, here is how to add additional people to your courses:
Go to your course homepage in Moodle.
Look for "Participants" in the left column, and click on it.
On the right-hand side, click on the Enroll Users button.
Use the "Assign role" drop-down menu to change the role to the one you need: TA or liaison, teacher, and auditor are all choices.
At the top of the box, enter the user's surname and hit enter.
Select the name of the user you wish to enroll. Steps 6 and 7 can be repeated to enroll multiple users manually.
Click Enrol users when you are done.
Be sure to remind students that they need to be registered for the course in my.mtholyoke to get credit: Moodle access does not mean they are registered.