Hi Adam,
I'm Nik, an independent advisor here to assist you with this.
If you have completed a Notebook setup, you will see a "Class Notebook" tab only in General channel.
Teacher view - https://support.microsoft.com/en-us/office/use-...
Student view - https://support.microsoft.com/en-us/office/use-...
There are essential components(section) of the OneNote Class Notebook experience that has been targeted to specific audiences:
- Student Notebooks -- a private space shared between the teacher and each individual student. Teachers can access every student notebook, while students can only see their own.
- Content Library -- a read-only space where teachers can share handouts with students.
- Collaboration Space -- a space where everyone in your class can share, organize, and collaborate.
I hope this helps. Please let me know if you have any questions and I will be happy to assist.
Regards
Nik