Sign up for Chalkbeat Indiana’s free daily newsletter to keep up with Indianapolis Public Schools, Marion County’s township districts, and statewide education news. Morrise Harbour has a tough assignment: turn around a chronically underperforming Indianapolis school. When he took over in 2022, just 4% of the students at Elder Diggs School 42 achieved proficiency in English on the state ILEARN test, and just 4.3% did so in math.