The specific case of Trumball School, and the explanation of how the CPS Utilization Formula penalizes CPS schools slated for closing.
Per interview on WTTW Chicago Tonight:
Do we believe that the Chicago Public School District unfairly punishes CPS Schools which serve high-needs special education students who attend classrooms that have legally capped maximums?
Yes.
The CPS Utilization Formula also punishes schools that use school spaces for community-based partnerships; “pull-out” services such as speech and occupational therapy interventions; computer labs and music rooms; and so on.
You can read about my reasoning and the information that I provided to WTTW here:
The Mom Who’s Challenging CPS on its Data
Here is the utilization of Trumball Elementary School that I provided to WTTW as an example:
Apples 2 Apples in Chicago Public Schools 