This study evaluated the impact of the master schedule design on student attendance, discipline, and grade point averages. Unexcused and excused absences, minor and major infraction, and grade point averages in three high schools during the 2008-09 and 2009-10 school years were included in the study. The purpose was to examine if any difference…

A number of high schools across the United States have moved to later bell times on the belief that their previous bell times were too early for the "biological clocks" of adolescents. In this article I study whether doing so improves academic performance. I first focus on the Twin Cities metropolitan area, where Minneapolis and several…

This study investigated the effects of block scheduling on student learning. It compared the grade-point averages (GPAs) of one group of students during their 9th-grade year while under the traditional 7-period day to the GPAs of their 10th-grade year under the 4-by-4 block schedule. The text offers a history of block scheduling and lists some of…