This study examines a mid-west elementary school transitioning from a school-within-a-school calendar, offering both year-round and traditional calendars, to a year-round only calendar. The satisfaction of teachers and families with the transition, and the factors that teachers and families consider in making a calendar selection, were examined using quantitative non-experimental surveys and focus groups. Teachers and families tended to have positive reactions to the transition. Although some traditional calendar teachers and families had a negative initial reaction to the transition, they became more positive during and after the transition. There was a statistically significant difference in the level of satisfaction by calendar for all five questions asked of families, and two out of five questions asked of teachers. The importance of factors influencing calendar selection differed from the survey prior to, and after, the transition. There was a statistically significant difference in all seven factors for families and five out of seven factors for teachers. When factors impacting calendar selection were examined by calendar, three out of eight factors for teachers, and two out of seven factors for families, had a statistically significant difference. The following are appended: (1) The Future of Year-round Education: Parent/Guardian Perceptions (2004-05); (2) Making the Transition: School-within-a-school to Year-round Education (2010-11) Survey; (3) [a.] Summary of Teacher Satisfaction with Transition to Year-round Only in Percentages and [b.] Summary of Family Satisfaction with Transition to Year-round Only in Percentages; (4) [a.] Summary of Teacher Satisfaction with Transition to Year-round Only by calendar in Percentages and [b.] Summary of Family Satisfaction with Transition to Year-round Only by calendar in Percentages; (5) [a.] Comparison of Satisfaction Mean Scores for Teachers by Calendar (1 = very satisfied) and [b.] Comparison of Satisfaction Mean Scores for Families by Calendar (1 = very satisfied); (6) [a.] Summary of Factors Influencing Calendar Selection by Teachers in Percentages and [b.] Summary of Factors Influencing Calendar Selection by Families in Percentages; (7) [a.] Summary of Factors Influencing Calendar Selection by Teachers by Calendar in Percentages and [b.] Summary of Factors Influencing Calendar Selection by Families by Calendar in Percentages; and (8) [a.] Comparison of Study 1 and Study 2 Mean Scores for Teachers (1 = major factor) and [b.] Comparison of Study 1 and Study 2 Mean Scores for Families (1 = major factor).