You may have some users within your Tenant that should never be shown within Teacher Dashboard.
By creating a Blacklist of users you are ensuring that they never be added to classes, or selected when sharing assignments or files with individuals.
You may want to set up a pilot within Teacher Dashboard in order to gradually roll it out within your school.
Create a Whitelist of users to ensure that these are the only users who show within Teacher Dashboard when setting up classes, or sharing assignments or files with individuals.
If teachers have permission to join or manage their classes, there is a possibility that they could add a teacher, or an administrator to their class. You will want to make sure that their OneDrives are not visible from the Dashboard.
The easiest way to protect all staff members' OneDrives from accidentally becoming visible is to ensure that anyone who is not a student has (at least) the role of 'Teacher'. You can do this on an individual user basis or in bulk.
To get started, click on 'Sites' in your SharePoint environment.
Teacher Dashboard is an 'app' that is available from the SharePoint store. The SharePoint Store is a public marketplace that you can access directly from a SharePoint site where you can buy apps from third-party developers for personal or organisational use.
After installing the Teacher Dashboard on your site, you'll need to locate the app icon in order to copy the link URL that will be used to generate a shortcut. To do this, first click on 'Sites' in your SharePoint environment.