The Chicago Tribune says the 144 districts represent 20 percent of all districts. Citing state data, the newspaper reports about 3,100 people received a total of $5.5 million. The average was $1,750.
Bonuses have become a common way to inspire educators to improve student achievement. But researchers say results are varied, and critics wonder whether it's a good use of tax dollars.
Lake County's Community High School District 128 recently paid $500,000 in "performance recognition" checks, mostly to teachers for high student achievemment. Administrators and custodians were also among those getting bonuses.
School Board President Pat Groody says it's a way to get people focused on "the concept that performance matters."