Cooperating Teacher AbsencesA student teacher MAY NOT serve as a substitute teacher at any time. A certified teacher must be assigned to the classroom, either the cooperating teacher, another teacher on the staff, or a substitute teacher. Although cooperating teachers are not required to be physically present in the classroom during the times that the student teacher is taking a lead in the instruction, the cooperating teacher is responsible for the classroom and should be available to the student teacher if necessary. A cooperating teacher may not just “look in” on a student teacher. Assigning an aide to the classroom in place of a certified teacher is not acceptable and a student teacher may not work under the supervision of a classroom aide. If a student teacher’s cooperating teacher is absent, a substitute teacher must be hired. If a student teacher’s cooperating teacher is asked to substitute for another teacher or is assigned to a different classroom for a day or half-day, the student teacher may not remain in the cooperating teacher’s room as a substitute teacher.