(St. Paul, MN) -- State education officials say 80-percent of Minnesota's school districts have agreed to more strongly link teachers' pay to their students' performance -- a prerequisite for the state to compete for federal "Race to the Top" education stimulus money. A number of Minnesota school districts are already participating in Governor Pawlenty's Q-Comp program, but the Education Minnesota teachers union is leery of measures that might make a tighter connection between teacher pay and student performance, arguing there's no evidence it actually results in students doing better