Our grading system uses statistical z-score normalization to provide fair, context-aware comparisons. A school beating the state average matters more than raw numbers alone.
Math, ELA & Science Test Scores
Graduation Rate & College Enrollment
Class Size & Teacher Experience
Math, ELA & Science Test Scores
Class Size & Teacher Experience
Drag the slider to see how a school's math proficiency translates to a grade based on its position relative to the state average.
Z-Score
+0.00
Near average
Intel Score
80/100
Grade
B
A school at the state average (50%) scores 80 points. Each standard deviation above or below shifts the score by 20 points.
Z-scores enable apples-to-apples comparisons by measuring how far each school deviates from the average. A school one standard deviation above average scores significantly better — regardless of the metric.
Research shows smaller class sizes and experienced teachers improve outcomes. We weight environment at 10% to reflect its meaningful but secondary impact compared to direct academic performance.
Absolute percentages can mislead. A 55% proficiency rate might be excellent in a challenging district or poor in an affluent one. Relative grading provides context that raw numbers cannot.