HomeLocalChicago Public Schools vows to lock out teachers who don’t show up, inching dispute closer toward strikeChicago Public Schools vows to lock out teachers who don’t show up, inching dispute closer toward strikeMon, February 1, 2021SHARE NOW The standoff between Chicago Public Schools and its Teachers Union appears to be reaching a breaking point Monday as staff have been given a final warning to report to facilities or they would lose access to their remote teaching tools — something the union previously has said would prompt a strike.