Faculty & Staff DirectoryHomeDirectoryAdmission CTAsRequest InfoVisitApply Ellen O'BrienInstructorContact InfoNameEllen O'BrienJob TitleInstructorEmaileobrien@gmu.eduOffice NumberExploratory Hall, Room 4205, MSN 3F2AffiliationsDepartmentsMathematical Sciences Department (Instructional Faculty) EducationM.A., 1979, State University of New York at Binghamton, MathematicsM.A.T., 1978, State University of New York at Binghamton, MathematicsContact InfoNameEllen O'BrienJob TitleInstructorEmaileobrien@gmu.eduOffice NumberExploratory Hall, Room 4205, MSN 3F2