Per Diem Non-Certified Substitute Teachers provide instructional support in the District''s hard-to-fill classrooms, ensuring students continue to receive a safe, structured, and engaging learning environment when their regular teacher is absent. DESCRIPTION OF DUTIES & RESPONSIBILITIES: Essential duties and responsibilities may include, but are not limited to the following: Under the direction of the building principal, the substitute teacher (per-diem) will: Provide an atmosphere and environment conducive to the intellectual, physical, social and emotional development of individuals to ensure success for every student.