To log into Century Learning please go to this link - Century Learning
From here please click on the 'Sign in with Office 365'.
From here please enter your school email address. Your email address should be your email@example.com
From here you should be redirected to RM Unify, you then need to enter your password that you use for the computers in school and Frog. then click Sign in.
You should now be logged into Century Learning.