How do I invite students with existing accounts?
Sharing iPads, some students from one class were still logged in on safari or in the app when another student from another class typed in the invite code and changed the previous student. Merging classes worked for those that were switched but I had removed a few from the wrong class already. Every time they put in the invite code to the web browser, it prompts them to create an account only not giving the option of logging in. How can these students be invited to the classroom without having to create a new account?
Have they tried logging in to their account on the web browser first, then entering the link you gave them?
If you don't mind them having your email address there is also the option of having them go to their progress sharing settings ( https://www.duolingo.com/settings/observer ) and manually entering the teachers' email address and class/section name they should be in.