Google Classrooms has been changed so that the students' passwords are now the school network login passwords (same as if you were in school).  However, student usernames have not changed.

** UPDATE **

The changes to Google Classroom have been to link our CC4 network, SIMS, RM Unify and G Suite all together. This means that the easiest way to log into Google Classroom is via RM Unify (https://sts.platform.rmunify.com/Account/SignIn/astleycooper). This uses your network login details ie; smithj, and whatever your password is in school to log into the computers. The box at the end of where you put in smithj should have @astleycooper in it, like this: