At the same time, no 10th graders, 11th graders or 12th graders took early college courses, but 40 percent of students scored a 21 or higher on the ACT, a college admissions test.
Illinois tracks several metrics to determine whether students are college-ready. But a high graduation rate isn't always indicative of college readiness. Data shows 83 percent of South Fork Junior Senior students who graduated in 2015 and attended Illinois community colleges had to enroll in remedial classes because they weren't prepared for college-level courses.
By state standards, high school freshmen who completed at least 10 semester credits and received no more than one semester failing grade in a core course, which includes English, math, science and social science, are considered on track to graduate, according to the Illinois State Board of Education. The state tracks progress in ninth grade because data has shown a student who is on track after that year is four times more likely to finish high school than a student who isn't on track.
Similarly, the state says graduating seniors who score a 21 or better on the ACT are prepared for college-level work.
On average in the state, 87 percent of freshmen are on track, while 51 percent of seniors scored 21 or higher on the ACT.
The average four-year graduation rate is 87 percent in Illinois.
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