A Chicago charter school network is seeking help in halting a teachers’ strike for much of the past week.

Educators with Acero charter schools strike outside the Veterans Memorial Charter School Campus, Tuesday, Dec. (Tyler LaRiviere/Chicago Sun-Times via AP)
Educators with Acero charter schools strike outside the Veterans Memorial Charter School Campus, Tuesday, Dec. (Tyler LaRiviere/Chicago Sun-Times via AP)
From left to right, Kathryn Schoedel, a teacher at Ziumbo Elementary School, Lindsay Anderson, a teacher at Torres Elementary school and Vanessa Cerf-Nikolakakis, a teacher at Torres Elementary School with their signs as they prepare to walk the picket line outside of Acero's Zizumbo Elementary charter school on Tuesday, Dec. (Antonio Perez/ Chicago Tribune via AP)
From left to right, Kathryn Schoedel, a teacher at Ziumbo Elementary School, Lindsay Anderson, a teacher at Torres Elementary school and Vanessa Cerf-Nikolakakis, a teacher at Torres Elementary School with their signs as they prepare to walk the picket line outside of Acero’s Zizumbo Elementary charter school on Tuesday, Dec. (Antonio Perez/ Chicago Tribune via AP)

The Chicago Tribune and Sun-Times report Acero filed complaints Friday with the Illinois Educational Labor Relations Board and National Labor Relations Board against the Chicago Teachers Union. The complaint filed in Cook County argues the strike is illegal because teachers didn’t follow mediation or notice requirements.

Charter school teachers including Vanessa Cerf-Nikolakakis, center, of Torres Elementary School, and other supporters walk the picket line outside the Acero's Zizumbo Elementary Charter school, Tuesday, Dec. (Antonio Perez/Chicago Tribune via AP)
Charter school teachers including Vanessa Cerf-Nikolakakis, center, of Torres Elementary School, and other supporters walk the picket line outside the Acero’s Zizumbo Elementary Charter school, Tuesday, Dec. (Antonio Perez/Chicago Tribune via AP)
Educators with Acero charter schools strike outside the Veterans Memorial Charter School Campus, Tuesday, Dec. (Tyler LaRiviere/Chicago Sun-Times via AP)
Educators with Acero charter schools strike outside the Veterans Memorial Charter School Campus, Tuesday, Dec. (Tyler LaRiviere/Chicago Sun-Times via AP)

Teachers went on strike Tuesday and classes were canceled for Acero’s 15 schools and 7,500 predominantly Latino students. They are demanding smaller classes, more special education staff, salary increases and protections for students and families living in the country illegally.

Educators with Acero charter schools strike outside the Veterans Memorial Charter School Campus, Tuesday, Dec. (Tyler LaRiviere/Chicago Sun-Times via AP)
Educators with Acero charter schools strike outside the Veterans Memorial Charter School Campus, Tuesday, Dec. (Tyler LaRiviere/Chicago Sun-Times via AP)
President of the Chicago Teachers Union Jesse Sharkey talks with members of the media as charter school teachers and their supporters walk the picket line outside the Acero's Zizumbo Elementary Charter school, Tuesday, Dec. (Antonio Perez/Chicago Tribune via AP)
President of the Chicago Teachers Union Jesse Sharkey talks with members of the media as charter school teachers and their supporters walk the picket line outside the Acero’s Zizumbo Elementary Charter school, Tuesday, Dec. (Antonio Perez/Chicago Tribune via AP)

Union officials say the walkout isn’t illegal. They say it’s the first strike at any of the privately run, taxpayer-funded schools in the U.S

Source: The Associated Press

Sign up to receive our latest news!

By submitting this form, I agree to the terms.