regardless of zip code. we owe them that. >> a week ago, record high new cases led to the teachers union voting to start teaching virtually. the school district responded by canceling classes all together. >> reporter: the standoff between chicago public schools and the chicago teachers union is over. teachers will be back in class tuesday and students wednesday. the core was the teachers union didn't feel the school district provided adequate resources to come back in person safely. some of the major sticking points, one was the timing for returning in person given the research surge in covid we've seen in the community but also metrics on when to take the district virtual, versus what the city wanted to do was make the decisions on a school by