They say it's led to a dramatic drop in suspensions at Chicago Public Schools.
At Wells High School, students use peace circles and peer juries to mediate and resolve conflicts. Both the mayor and Bennett say it's important to keep students in class and on track to graduate.
One girl who said she had been suspended in the past agrees.
"It helped me change my outlook on life and to see that what I was doing could have been better," said Keeyana Freeman. "Without this program I think I would be doing what I was doing then. Now I'm on track to graduate in June."
A committee has been formed to look at what more can be done to keep students in class.