INDIANAPOLIS (AP) – The Indiana State Board of Education staff will host three public hearings this week to take comments on a proposed change to the A-F school grading scale. 

The proposed change would factor the growth of all students into a school's grade. The current model only reflects progress if a minimum threshold of students shows high growth at a school. 

The letter grades were first approved by the education board in 2012 as an alternative to Indiana's previous school-rating system. They reflect recent academic performance on the state's standardized tests and other success indicators. 

The public hearings will take place Wednesday at the Evansville Vanderburgh School Corp., Thursday at Marion High School, and Friday at the Indiana Government Center in downtown Indianapolis. All three meetings begin at 9 a.m. local time.