Students are added to your Admin Pro organization via individual classes in your org. Teachers connect to your organization via join-code, set up classes under their account and add students to those classes. As a member of your organization, classes and students added under that teacher's account is automatically added to your organization.
Students can be added to classes using Kidblog display name (with an optional email address) and password, via Clever, or via Google. Initial sign up is easy. Follow the steps in the below help center articles to get started: