These are the appendixes for the report, "How Legacy High School Students Use Their Flexible Time." The study examined whether students with different demographic characteristics and academic achievement levels use their flex-time differently. The study found that, on average over the school year, students had approximately 80 minutes of flex-time a day and chose to use 19 percent of it for academic activities. Female students used a statistically significantly larger percentage of their flex-time (21 percent) for academic activities than male students did (17 percent). The percentage of flex-time used for academic pursuits did not vary by academic achievement level, although students who were struggling academically had a higher percentage of teacher-determined flex-time (9 percent) than did students who were meeting grade expectations (3 percent) and students who were excelling academically (less than 1 percent). Finally, when teachers determined how students used some of their flex-time, students used the largest percentage of that flex-time in school learning centers. Five appendixes are included: (1) Literature review; (2) Sample flexible mod schedule; (3) Methods; (4) Supporting analyses; and (5) Legacy High School time log. [For the full report, see ED606448; for the study brief, see ED606453; for the study snapshot, see ED606454.]