In the 2021-22 school year, 55.3% of Community Unit School District 200 students failed the Math portion of the IAR test, according to the Illinois State Board of Education report.
In the 2021-22 school year, 55.4% of Glen Ellyn Community Consolidated School District 89 students failed the Math portion of the IAR test, according to the Illinois State Board of Education report.
In the 2021-22 school year, 57.2% of Cass School District 63 students failed the Math portion of the IAR test, according to the Illinois State Board of Education report.
In the 2021-22 school year, 59% of Center Cass School District 66 students failed the Math portion of the IAR test, according to the Illinois State Board of Education report.