Only the course Instructors can view student SIS numbers!
A TA can add, edit and delete events on the course calendar; create web conferences, manage (add/edit/delete) assignments/quizzes, course files, groups, and pages; moderate and post to discussions; see the list of students, but CANNOT edit and view grades.
In addition to a TA’s permissions, a Grading TA can edit grades, view students’ submissions and make comments on them.
A Grader-Homewok has fewer permissions than the Grading TA. While the Grader-Homework can edit grades; view all students’ submissions and make comments on them; see the list of students, they CANNOT add, edit and delete course content.