Some authenticator apps (Including Authy) offer a desktop version of their app for Mac and PC.
If your teachers aren't allowed to use mobile devices in school, they can use the desktop version to sign in when two-factor authentication is enabled. Please note that when setting up, they will need to type in the key manually into Authy - they won't be able to scan the QR code.
You can also:
- whitelist your school's IP addresses, so two-factor authentication is not required when teachers are on site
- tick the on the setup page to Bypass two-factor authentication for SSO accounts?. This will mean that Two-factor authentication is only required when using the Arbor Username and Password, but not when logging in with Single sign-on (SSO).