Chicago teachers demand online learning, prompting city to cancel classes Wednesday for up to 330,000 students. The Chicago Teachers Union voted to pause in-person learning and work remotely until Jan. 18, or until COVID-19 cases fall dramatically in the nation's third-largest school district. Chicago Mayor Lori Lightfoot said the vote constituted an "Illegal work action," and Chicago Public Schools CEO Pedro Martinez described the action as a "Walkout." Teachers who do not show up will not be paid. Source 1e.