For teaching classes or testing access to many Microsoft services is it common to need a new AAD backed account.
Turns out this is both free AND easy as 1-2-3.
Step 1. Create a new Azure Active Directory.
Log in with any Microsoft Account..If you don’t have one they are also easy to create and can be created here: https://account.microsoft.com/account?lang=en-us
Navigate to Azure Portal at and select the Active Directory blade and select “Create New Directory” the direct link is:
Step 2. Navigate to Users in Active Directory
In the Active Directory blade select “All users” and then “New User”
Step 3. Create your Test User.
Under the new user dialog fill out their name and user name. For many use cases like teaching classes, if you need to create hundreds or thousands you can do this via PowerShell as described here: https://blogs.msdn.microsoft.com/charles_sterling/2015/06/29/creating-users-in-an-azure-ad-in-bulk/