Dear Liz,
If I understand your goal correctly, you can share a class notebook in Teams by following these steps: (source: https://support.microsoft.com/en-us/topic/use-o...)
- Go to your Class Notebook tab in Teams and select Expand tab to open it in full-screen mode.
- Select Class Notebook > Manage Notebooks to access the notebook settings.
- Select Copy a link to your notebook and choose whether you want to copy a view-only or an edit link.
- Paste the link in a chat or an email and send it to the individuals you want to share it with.
I hope this helps.
Best Regards,
George A.