Instructors whose students sit in a traditional classroom arrangement use space differently than those whose students sit in non-traditional arrangements. One study investigated relationships between teachers' spatial use and seating arrangements, interpersonal relationships, personality characteristics, and sex. The observation system utilized six distinct areas in the classroom, and results indicated that use of three of these spatial areas seems to have some significant relationship to students' perceptions of the instructor. Male teachers tend to change spatial categories more often and use more areas of the room than female teachers, but there is no significant comparison between use of space and instructors' ranks on personality inventories. There is no relationship between personality ratings and a teacher's choice of seating arrangements. Those using the non-traditional arrangement move more often and use various areas more frequently than those utilizing a traditional arrangement. (RN)