About
SchoolScan finds the instructional pattern hidden inside the evidence your school has already collected — and tells leadership exactly where to focus.
The problem
Schools collect the data. The pattern stays buried.
Evaluation cycles happen. Walkthroughs get logged. Scores get filed. But the instructional story inside that evidence — which domain is driving inconsistency, which gap has been growing for two cycles — nobody has read it that way.
The insight
Most leaders are focused on the wrong thing.
Not because they aren't paying attention. Because no one has read the evaluation evidence for patterns. SchoolScan does that read — and in most schools, the real gap is different from what leadership assumed.
What SchoolScan is
A diagnostic service
Not coaching. Not PD. Not curriculum. SchoolScan reads your existing evaluation evidence and names the instructional pattern it reveals.
Built on your data
No surveys. No classroom visits. SchoolScan works from the observation records and walkthrough evidence your school has already generated.
For leadership teams
Principals, APs, instructional deans, and charter network leaders who need to know what the data actually says before deciding what to do next.
Founded by
Dr. Shelonda Tillman, Ed.D.
Organizational Leadership · 25+ Years in DC Schools
Teacher, department chair, instructional coach, and Science Instructional Systems Specialist across DC public and charter schools. Her doctoral research examined the connection between teacher data and student outcomes. That research is the foundation SchoolScan is built on.
After reading thousands of classroom observations, the pattern became clear: the answer is almost always already in the data. Leadership just hasn't had anyone read it that way.