To enable anonymous submissions:

1. Turn on Edit mode at the top right corner of your class page
2. Click on the 3-dot dropdown to the right of the assignment and select 'Edit settings'
3. In your Assignment settings, scroll down to the 'Grade' option and select Yes for the 'Anonymous submissions' option. 
4. Save your changes and return to the main course page.
   
   

To grade assignments using anonymous submissions:

1. Click on the assignment and select View all submissions.
   
   
   
   
2. The "Identifier" column in the Gradebook now displays random numbers in place of student names:
   
   

To release grade to students using anonymous submissions:

1. From the assignment's 'Grading summary' page, click on View all submissions.
   
   
   
   
2. At the top left of the page, from the 'Grading action' drop-down menu, select Reveal student identities.
   
   
   
   
3. To confirm that you want to reveal student identities and release student grades to the gradebook, click on Continue.
   
   
   
   
4. The "Identifier" column in the Gradebook now displays student names in place of random numbers: