Dieterich Elementary School ranks #21 in the state of Illinois in math scores.  

Grade school districts in Lake, Cook and Clinton counties ranked the highest in Illinois for math aptitude, according to the Illinois State Board of Education.

As part of the annual Partnership For Assessment of Readiness for College and Careers ("PARCC") examination, Illinois public school students in grades three through eight are tested based on Common Core math standards.

The students pass if their scores either meet or exceed expectations, indicating they're "ready for the next level" of school.