999 West Dundee Road
Wheeling, Illinois 60090

Phone: 847-537-8270

Hours: 8AM – 4PM

Superintendent: Dr. Michael Connolly

School Board & Administration



CCSD21 is a school district comprised of 13 schools across 6 different communities in the northwest suburbs of Chicago.



School District 21 prides itself on its Professional Learning Community and its rich tradition of professional collaboration, high levels of professional development, and family-like atmosphere. If you see the opportunity to work with colleagues in making a difference in the lives of students and families in a truly diverse setting, School District 21 seeks your application.

Learn More


CCSD21 believes that the primary purpose of assessment is for educators, parents, and students to better understand the student’s academic strengths and areas of focus. Teachers use assessment results to guide instruction, designing lessons and selecting strategies that build on students’ strengths and challenge students to higher levels of academic achievement. Parents and students use the information to reflect on progress and to set learning goals.

At the same time, School District 21 recognizes that large-scale assessments can provide useful information about strengths and areas of improvement at the school and district level. This data is used to analyze the attainment of our district’s PLC Goals for Student Achievement in Reading and Mathematics. This information is then used to create school and district improvement plans.

In School District 21, our cohesive student assessment plan includes:

  • State mandated testing, such as IAR, ISA, DLM, ACCESS for ELLs, KIDS (for kindergarten), COR Advantage (for Pre-K)
  • District-wide assessments, such as the Northwest Evaluation Association’s Measures of Academic Progress (MAP)
  • Common grade-level and school assessments in Reading, Mathematics, and Writing as well as in other areas of learning
  • Informal classroom assessments that can be quickly scored and analyzed to make up-to-the-minute adjustments to classroom instruction.


Understanding score reports

Illinois Assessment of Readiness (IAR)

The Illinois Assessment of Readiness (IAR) assesses progress of students in grades 3-8 in meeting the Illinois Learning Standards in English language arts and mathematics. This is an annually-mandated assessment by the Illinois State Board of Education. For more information on IAR and how to interpret your child’s report, please review:


Measures of Academic Progress (MAP)

School District 21 utilizes the MAP (Measures of Academic Progress) assessment as one measure to provide information on student academic growth. MAP is a unique computer assessment that adapts to a child’s level of understanding and mastery of skills. The difficulty level of each question is adjusted based on the student’s answers.

Students in second grade through eighth grade are assessed in Reading and Mathematics in the Fall, Winter, and Spring.

Please view the Student Progress Report Quick Reference handout to learn more about specific information provided on the report.

Important MAP Information

  • How do teachers use the results? MAP test results are important to teachers because they indicate student growth in basic skills. By analyzing these results, teachers know where a student’s strengths lie and in which areas specific support is needed. This information helps guide instruction in classroom lessons.
  • What is a RIT score? This is the student’s overall score on the test. This is the most important piece of information on the report. This score is not related to the age or grade level of the student, but it reflects the level at which the student is currently performing. RIT stands for “Rasch UnIT,” which is used to measure a child’s growth in learning reading and math, like inches are used to measure a child’s height.