Costello School
Recent News About Costello School
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Cook County students and their English performance in 2021-22 school year
Out of the 297,076 students who took the IAR in the 2021-22 school year, 27.7% passed the English portion of the test.
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Test Expectations: How many students met or exceeded Mathematics IAR expectations in Cook County in 2021-22 school year?
Out of the 295,548 students who took the IAR in the 2021-22 school year, 22.8% passed the Mathematics portion of the test.
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What is the highest percentage of truancy in schools among Cook County during 2021-2022 school year?
Schools among Cook County had the fourth highest truancy rate of 31.9% during the 2021-2022 school year, according to the Illinois State Board of Education report.