The case had to do with an amendment to the state constitution that requires lawmakers to increase so-called "base per pupil funding" each year. That amendment was approved by voters in 2000.
But when the state hit a recession a decade later, lawmakers had to rely on some fancy accounting to comply with the schools amendment and still balance the books. They created what's called the "negative factor," where total funding to school districts went down, but not the per-pupil funding.
On Monday, the Supreme Court sent the lawsuit to a lower court with instructions to dismiss it.