In the 2021-22 school year, 50.5% of Center Cass School District 66 students failed the ELA portion of the IAR test, according to the Illinois State Board of Education report.
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In the 2021-22 school year, 50.7% of Indian Prairie School District 204 students failed the Math portion of the IAR test, according to the Illinois State Board of Education report.
In the 2021-22 school year, 50.8% of Glen Ellyn Community Consolidated School District 89 students failed the ELA portion of the IAR test, according to the Illinois State Board of Education report.
In the 2021-22 school year, 51.4% of Itasca School District 10 students failed the ELA portion of the IAR test, according to the Illinois State Board of Education report.