. Job Title. Instructional Assistant. Terms of Employment. 9.5-month Support (191 Day, 7 hours). FLSA Status. Non-Exempt. Work Location. John Marshall High. Immediate Supervisor. School Principal. . General Description. Duties performed typically in a school setting. Performs professional work providing teaching and/or training services to students in a specialized subject. Work requires frequent standing, sitting, light lifting up to 10 pounds, ...