Yes, if teachers are part of the same site licence, their students can be on multiple rosters within that site licence. Each teacher just adds the student to his or her roster as usual. To add a student, the teacher types the first few letters of the student’s name and selects the match from the preloaded list. The student’s information will be automatically entered in the roster.
If a student transfers from one class to another, the new teacher simply adds the student, and the former teacher removes the student. To remove a student from the roster, the teacher clicks the red X next to the student’s name.