Test Expectations: How many students met or exceeded Math IAR expectations in Cass School District 63 in 2023-24 school year?

In the 2023-24 school year, 43.6% of the students in Cass School District 63 passed the Math portion of the Illinois Assessment of Readiness (IAR), according to the Illinois State Board of Education.

Of the 484 students in Cass School District 63 who took the Math portion of the test, approximately 211 (43.6%) passed.

The percentage of Cass School District 63 students who met or exceeded expectations on the IAR decreased by 1.8% compared to the previous school year.

Cass School District 63 roughly covers two schools within DuPage County and has a main office in Darien.

The Illinois Assessment of Readiness (IAR) measures how well students in grades 3-8 are progressing toward state standards in English language arts and mathematics.

Recent IAR data shows that while Illinois students improved slightly in the test, math performance remains below pre-pandemic levels. In 2024, 28.4% of students met math benchmarks, compared to 31.8% in 2019. However, data also indicates a significant achievement gap based on race and ethnicity. 

The disparities were even more pronounced in math. White students achieved a proficiency rate of 38.7%, while Black students achieved 9.1% and Hispanic students 15.6%. Asian students achieved the highest proficiency rates in both subjects, hitting 68.2% in ELA and 61.4% in math.