How can I add a student to an existing class as a school administrator?
Edited
Log in to tynker.com as a teacher
Click the admin page on the left
Click the students tab and search for the student you want to move
Check the student who you want move into a different class
Click the bulk action menu in the top left
Click add to classroom
Select the class you want to move the student to.
Other Resources
Quick Start Guide for Administrators