How can I join a German classroom?
I have just started learning deutsch but it would be great to have some extra work.
"Duolingo for Schools" is for teachers to use with their real classrooms. They're not supposed to be used by the general public because they reveal email addresses. That's no big deal for a teacher who already knows the school email addresses of her students, but for strangers on the Internet it's a different story.
Maybe you could switch your subject to something like "Looking for more German resources" and get ideas from folks that way.
Good luck, I hope you find what you are looking for!
You're welcome! I wish Duolingo would make that more clear. It would save some confusion.