41. Brandywine High School changed to block scheduling at the beginning of the 2008-09 school year. 42. Classes are arranged around a loose block schedule , beginning and ending intermittently throughout the academic year. 43. During the 2010-2011 and 2011-2012 school years, ATC adopted a block schedule . 44. The block schedule allows for more concentrated, less fragmented learning than does a traditional high school schedule. 45. Linn-Mar High School has used the modified block schedule since the 1999-2000 school year. 46. Classes work on a block schedule format where students attend five 73 minute classes per day per semester. 47. KHS runs on a two-day block schedule , each day having four classes 85 minutes long. 48. Because of block scheduling , most of the classes only take a half of a year to complete. 49. Princeton operates under what is known as the Block scheduling system, specifically the four-block system. 50. Each student attends four classes per day, with three alternating every other day on a block schedule .
