“We all agree we must prioritize the health and well-being of everyone in our school communities including our kids, families and staff,” Lightfoot tweeted. “The science tells us the safest place for our students is in the classroom.”

In a statement, Lightfoot said in addition to the more than $100 million already spent on Covid-19 mitigation, “CPS is providing KN95 masks, augmenting its every school-every week testing program & strengthening its contact tracing approach.”

“CPS principals will continue to work w/their school-based safety teams to make data-informed decisions in the best interests of students & families. We encourage families to get their kids vaccinated and consent to regular testing,” the mayor tweeted.

The new agreement comes nearly two days after the union’s House of Delegates voted to suspend its work action, effectively ending the standoff with Chicago Public Schools. The rank-and-file vote was the final hurdle.

Teachers in the nation’s third-largest school district returned in person to schools Tuesday — with students returning Wednesday — after classes were canceled five days in a row amid a dispute between the teachers union and the district over Covid-19 safety protocols.

The new deal in Chicago follows agreement among the sides on KN95 masks for students and staff for the rest of the school year; the availability of weekly Covid-19 testing; and parameters for when a school could switch to remote teaching.

Parents, teachers still concerned about returning to in-person learning

Teacher Nicole Riegert returned to her science classroom Wednesday conflicted.

“I’m a biology teacher, so I know a lot about viruses. And this virus is dangerous,” Riegert told CNN.

“I don’t think the metric should be: Well, it’s not killing people. The metric should be: It’s making people sick. And I got Covid over break.”

Riegert still has trouble breathing after her infection over the holiday break, she said. On Wednesday morning, hours before the 4 p.m. CT deadline to vote on the deal, Riegert said she had not yet decided which way to vote.

If the rank-and-file union members vote down the tentative agreement, the decision would then go back to the union’s House of Delegates. Next steps then might include keeping in-person learning as negotiations resume or a push for remote learning as negotiations continue.

In the meantime, 14-year-old Summer Dailey is thrilled to be back in school, she told CNN.

“Not being in school has been like really kind of sad and boring for me,” the Jones College Preparatory High School freshman said.

“I love going to school, personally. So I just really wanted to go back to school. I’m really excited to be back.”

Xuan-Vu Nguyen, whose 12-year-old son is a student in the district, said she’s also relieved schools are reopening.

“My first reaction was, ‘Yay!'” But she added: “We’re anxious about if and when this is going to happen again at no notice whatsoever.”

Parents didn’t get a lot of warning of the school closures and her family had to drop everything to accommodate the change, Nguyen said, which left her feeling frustrated.

“I was, as a parent, left with no power — nowhere to voice my concerns, nowhere to ask questions, really, about when this was going to end.”

Kathryn Rose, a Chicago teacher and parent, said she was eager to get back to school.

“I’m certainly relieved to go back to the classroom and see my students, and my kids are really excited to go back, too,” she said.

“It’s been frustrating to sit at home, healthy, and wanting to be in the classroom.”

Rose always felt safe with the school’s mitigation measures and didn’t feel a districtwide shutdown was necessary, she said.

“When you shut down schools, you’re ignoring the multitude of dangers outside of the classroom, like abuse and hunger and lack of heat and violence,” she said. “And these are things that families in Chicago are really struggling with.”

Melanie Lopez, a CPS teacher and the mother of 7-year-old twin girls, said she knows that at this point sending her kids to school is just what she has to do.

“I trust their teachers are going to do everything possible. … It’s just certain things are out of their control,” she said. “I’ve tried to teach my daughters as best as possible, make sure you’re wearing your mask, make sure you’re giving personal space.”

Lopez said she still feels uncertainty about how this recent agreement will hold and wants to better plan for what’s next. She told CNN she felt “like this is kind of limbo right now.”

“We’ve been through it now twice,” she said. “In case there’s a surge, in case there’s a new variant, what is the plan?”

Increased testing is part of the proposed deal

As part of the deal, Covid-19 testing in schools will ramp up to 10% of students in each school being tested each week, CTU chief of staff Jen Johnson said.

The mayor’s office will work with the teachers union on engaging families to increase testing consents, Mayor Lightfoot said. “That’s a critical part of it,” she said. “We want to get to as high a number in testing consents as we possibly can.”

The tentative deal also includes details on contact tracing and new incentives to increase the number of substitutes in the district, the mayor said.

The two sides also “reached an agreement on the metrics for, at a school-based level, for when we needed to convert a classroom or school to go remote. Not surprisingly, the component parts of that depend upon staff and or student absences,” she said.

Voting by the union’s rank-and-file members began late Tuesday and is expected to be open for 24 hours, in time for a regularly scheduled CTU House of Delegates meeting Wednesday afternoon, a union official told CNN.

The Omicron surge is impacting schools nationwide

The impasse in Chicago began last week when the union voted to begin teaching virtually due to rising Covid-19 cases in the school system. In response, the school district canceled classes during negotiations.

On January 4 — the last day students were in classrooms before the temporary shutdown — Chicago Public Schools reported 422 new Covid-19 cases among students and 271 new cases among adults — both record highs for the academic year.

“SFPS ended last week with 361 cases involving students and staff, the largest ever in one week for our district, with many still being investigated,” he said. “Cases could rise to near 600 this week, and we have seen increased spread in classrooms.”