The State Board of Education wants Legislative Services Agency calculating the grades, saying the Indiana Department of Education is taking too long.
Two policy analysts will review the A-F system and make recommendations to the state about what next steps would be appropriate.
State school superintendent Glenda Ritz will ask the State Board of Education next month to make it a last-resort option for schools.
A judge this week decided the state should have looked at this year’s enrollment, rather than last's, when distributing funding to the schools
The Board of Education says adding fourth-through-sixth graders would in essence extend the state takeover to schools which haven‘t been classified as failing.
The state superintendent said the questions centered around making sure the state, turnaround school operators, schools and community work together.
The School Board approved the plan to file suit by a 4-3 vote.
A half dozen chronically under-performing schools did not improve enough to be removed from the state's probation list.