 The elementary schools went from housing grades K-5 to housing grades K-4; the middle school from grades 6-7 to grades 5-6; the junior high school from grades 8-9 to grades 7-8; and the high school from grades 10-12 to grades 9-12.Because of this change, from 2000 until 2005, the first day of classes was different for every grade.Grades K-2, 5, 7, 9, and 10 began classes on one day, while grades 3-4, 6, 8, and 11-12 began classes the following day.