Questionnaires completed by 374 teachers were used to determine differences in the instructional and noninstructional responsibilities of elementary teachers in very small, small, and medium school districts in Montana. Questions about instructional duties related to number of courses and grade levels taught, pupil/teacher ratio, teacher role in curriculum development, availability of specialists and administrative supervision, and clock hours spent in teaching and in-service training. Questions about noninstructional duties related to supervision of students and various administrative tasks. Data were analyzed using gamma to measure the association between school district size and the duty performed and were further analyzed to determine the duties performed more often by teachers in very small school districts as compared to teachers in small school districts. A comparison of duties of teachers in small and medium school districts was also made. Teachers in very small school districts were found to perform more instructional and noninstructional duties than either small or medium district teachers. Likewise, teachers in small districts performed more of the duties than teachers in medium districts. The majority of the differences were accountable between the duties reported to be performed by teachers in the very small and small districts. (JHZ)