Once again, fewer than half the elementary and middle school students tested last spring were ready to tackle both reading and math in the next grade. The percentage of 11th-graders taking a college admission exam deemed ready to attend a public university has fallen in each of the past two years. Graduation rates were frozen. The same share of the state's more than 2,500 traditional and charter schools earned As or Bs under the state's A-to-F grading system.