Classrooms are empty of students and teachers after the Chicago Teachers Union decided to hit the picket lines beginning Monday morning. There was no resolution after a late night meeting with CPS officials, " We have failed to reach an agreement that will prevent a labor strike, says, Chicago Teachers Union President Karen Lewis. Watch the video & click the picture below for more detailed footage. Or go to www.v103.com/cc-common/mainheadlines3.html?feed+411712&article=10398576