Hi Melanie, 

I’m afraid we don’t currently offer the ability to add a co-teacher to a class or share a class among multiple teachers. A class is always tied to the Teacher account that created it, and only that account is able to see scores and manage assignments for the class.

One possible workaround would be asking the teacher who created the class to share their account credentials if the co-teaching occurs for a limited period, such as an extended leave of absence, for example.

Just in case you'd like a few resources as you continue to set up your classrooms, I'd like to recommend some of our Help Center articles, including:

• Our Teacher Start-up Guide
• How to Manage your Roster
• How to Edit, Copy, and Delete Assignments
• How to Manage Assignments
• How to View Students' Performance and Progress

Finally, I’d also like to recommend our course, Khan for Educators, too! This is a dedicated course for teachers getting started at Khan Academy. It’s composed of seven lessons that explore everything from getting started to classroom implementation and diving deep into Khan Academy’s teacher reports.

I hope this helps!