bring in adrienne broaddus. again, kids aren t going to today, but if everything goes well, tomorrow. reporter: exactly. so not four days of missed school, john, five. sanjay was just talking about those high-quality masks. let s get right to this agreement. that s one thing teachers of the union here in chicago wanted. they wanted to make sure students were able to wear kn-95 masks. what we know about this agreement, the city has agreed to provide kn-95 masks to students and staff. it also has agreed to add some enhanced pllayers to weekly cov testing. now, there will be a threshold. there are metrics in place that will trigger individual schools to switch to remote learning if covid cases, the transmission is high, based on cdc guidelines. however, the president of the