摘要:Background Research shows that over summer break, students forget approximately 1 month of learning in math and reading; furthermore, low‐income students lose ground relative to peers. Year‐round education (YRE) redistributes schooldays to shorten summer. Prior analyses pooled single‐track YRE (academic intervention in which all students attend school on a common calendar) and multitrack YRE (fiscal intervention countering overcrowding, in which groups of students attend school on staggered schedules).