Math and Science Education: State-by-State Rankings
The study uses student performance in physics and calculus courses (measured by various standardized exams) as well as teacher certification requirements to rate each state.
Massachusetts comes in first, with New York placing a respectable fifth. Mississippi is dead last by a wide margin.
I originally came upon this story in the Huffington Post, and readers posted some interesting responses. One comment compared and contrasted these rankings with the average math SAT scores for each state. And another person remarked how closely these state rankings in math and science education align with state voter preference!