If the Section Totals are not correct on your Section, or if the number of students that teachers are seeing does not match the number of students that they should have, you will need to Sync Section Totals. This is done from the Menu on the Section screen, and will need to be done for each school that is experiencing this mismatch. Use Synchronize All Section Totals to do the process once for each school.
This process verifies that the totals displaying on the section are correct, and in turn, display in TeacherVUE.
