More than 76 percent of Chicago Public Schools (CPS) students who begin kindergarten as English Learners (ELs) become proficient in English by fifth grade. Outcomes showed that students who achieved English proficiency by eighth grade (78 percent), performed academically as well as or better than their peers who began school proficient in English or were native-English speakers.Previous studies about ELs have reported data on active English Learners-defined...