Grading Curves: The Floor-Raising Curve
The Floor-Raising Curve: a way to curve grades, graphed as new grade vs. old grade.
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Free for classrooms, worksheets, slides and other non-commercial use under CC BY-NC 4.0, with credit to Ben Orlin.
Cartoon by Ben Orlin, Math with Bad Drawings. https://cartoons.mathwithbaddrawings.com/2025-10-22-curves-to-curve-by--grading-curves-the-floor-raising-curve/ (CC BY-NC 4.0)Transcript
THE FLOOR-RAISING CURVE: divide by 2, then add 50%. Pros: strictly monotonic; raises floor without raising ceiling. Cons: you must gaze upon a glass that is utterly empty and call it "half full."