If you have a teacher account, you can login from the home page of our Digital Platforms. Scroll down the page and in the column "Ultimate Dialogue Adventure" (there is also a label "For students" at the top) click on the Login link.
In the login screen, Please type the email and password you entered at registration.
If you don't have an account yet, click on "Start your Adventure and Sign up" instead (read here for more details on how to create a new account). Next time you login, you will need to click on the Login button.