TOPEKA, Kan. (AP) — A dispute over whether Kansas must boost spending on its public schools by tens of millions of dollars each year is headed back to the state's highest court. Kansas Attorney General Derek Schmidt's office notified a three-judge Shawnee County District Court panel this week that the state will appeal the panel's latest ruling in a lawsuit filed in 2010. The panel ruled in December that the state must spend at least $548 million more annually to fulfill its duty under the state constitution to provide a suitable education to every child. The state both appealed to the Supreme Court and asked the panel to reconsider. The high court told the lower court March 5 to review the state's request to reconsider. But the panel last week reaffirmed its December ruling.