High school principals have asked the Education Ministry to cancel the remaining matriculation exams and replace the final certificate grade with the internal grade (submission grade) that schools awarded to students, ynet has learned. The chairwoman of the Secondary School Principals Association, Iris Doron, noted in a letter to the director of the Matriculation Examination Department at the Education Ministry, David Gal, that students are not sleeping at night due to sirens, which severely impairs their ability to learn, concentrate and prepare for exams that have meanwhile been postponed to unknown dates. Education Minister Yoav Kish announced Saturday evening that matriculation exams scheduled for next week would be postponed by one week. These include exams in history, biology and advanced subjects.