To remove students from your class in Gizmos, use the Class Roster.
Go to My Homepage, choose the class you want and select Class Roster. In the roster, you’ll see the names, user names and passwords for the students that are enrolled in your class.
To remove a student from a class, select the checkbox next to the student’s name and select Remove. Select OK when asked if you’re sure you want to remove the student, and the student will then be removed from your class roster.