Does Google Classroom work on a tablet?

Yes, Google Classroom does work on all tablets. However you will need to download the following apps from the appropriate app stores. You will, as a minimum, need to download (for free):

Google Classroom                          Google Drive 

Google Docs                                  Google Slides 

Once the apps have been downloaded log in to each one using the login and password details you have been given by school. These usernames should end in @oakridgefed.co.uk .