Nearly all of Michigan's 542 school districts have shown they are improving students' reading, writing and math skills.
State education officials said that nearly 96 percent of the school districts across the state have met standards laid out by the federal No Child Left Behind Act.
The standards mostly are based on standardized test scores and graduation rates.
The number of districts that met the adequate yearly progress standards improved from 431 last year to 518 this year.
Meanwhile, the number of districts that didn't meet them dropped. They went from 109, or 20 percent last year to 24, or four percent this year.
The state is improving, but new schools chief Mike Flanagan says it's too early to assume that there is a trend. The federal law is only four years old.