In schools across the country, educators recognize the power of the arts to change young lives. They know that students' sustained engagement with enriching, high-quality experiences in the arts promotes essential skills and perspectives -- like the capacity to solve problems, express ideas, harness and hone creativity, and persevere toward a job well done. And yet today, educators at many schools that operate with conventional schedules are forced to choose between offering their students valuable opportunities to pursue the arts and focusing on other rigorous core classes that also are necessary for success in the 21st century. This study, which highlights an exciting new approach, is produced by the National Center on Time & Learning (NCTL), an organization dedicated to expanding learning time to improve student achievement and enable a well-rounded education, with support from The Wallace Foundation, a national philanthropy seeking to improve education and enrichment for disadvantaged children. In these pages, we present portraits of five schools that are advancing arts education through an expanded school day as they create vibrant and inclusive models of truly enriching education for all students.