In order to manage teacher accounts, you will need to use your Admin/Principal account.
Watch video and find additionl links below.
How do I add a new teacher or remove a teacher from my school/site?
How can I create or update a teacher's roster from the Admin/Principal account?
Also see the attached tip sheet for detailed instructions on how to use the administrator account to manage students and teachers.
For district deployments of Let's Go Learn, if you are at an individual site, you may need to speak with a district administrator to add teachers.