Except in cases of emergency, or in unforeseen similar circumstances, every teacher shall be entitled to an uninterrupted meal period between 11:00 a.m. and 2:00 p.m. each school day. This meal period shall be the lesser of 55 minutes or 5 minutes less than the midday intermission given to the students of the school in which the teacher is employed. Designated staff will be on call during this meal period to deal with emergencies or unforeseen similar circumstances.