1. click on the "sharing" icon to the right of the folder
2. click on the plus (+) next to Share link to create a share-link Students can then use this link to access this folder.
3. optionally set the access rights The default setting is read-only (students can only view and download data, but cannot change or add data)
4. optionally protect the folder with a password. this way the folder can only be accessed in combination of link and password.