Right now, someone who makes breakfast for the students of Van Nuys High School, drives their buses or helps out students in need of the most support belongs to a union that is still at the negotiating table with LAUSD tonight. Whether school opens Tuesday has not been decided.

Sunday, LAUSD reached tentative agreements with United Teachers Los Angeles and Associated Administrators of Los Angeles. Those deals are not enough to stop a strike: from the start, all three unions agreed to walk out together, and if one goes, the others follow. If LAUSD cannot reach an agreement with SEIU Local 99, then the strike would close Van Nuys High School and every other LAUSD school, affecting around 400,000 students across the city.

The district announced tentative two-year agreements with UTLA which represents about 35,000 teachers and the AALA, representing roughly 3,000 principals and administrators. Under the UTLA agreement, teacher pay scales would increase by 11.65%, and the starting salary for new teachers would rise to $77,000 per year, according to district officials.

But those two deals aren’t enough to prevent the strike. From the beginning, all three unions agreed to walk out together. UTLA said that its members pledged to honor SEIU Local 99’s picket line if a deal cannot be reached by Tuesday.

SEIU Local 99 represents the workers who keep schools running every day: the workers who cook and serve food, clean classrooms, drive buses and support students with disabilities.

The union’s roughly 30,000 members earn an average of $35,000 a year, according to SEIU, and have been asking for a 30% raise for over three years. LAUSD has been offering a 13% raise, according to NBC Los Angeles.

Without SEIU members, every student at Van Nuys High School will feel the difference. Services SEIU workers normally provide would stop, but some support would still be in place. “There are organizations and there are school sites that are going to be providing school lunches and they’re gonna be providing food, pick up and some of the sites will be providing childcare,” magnet coordinator Fanny Araña said.

The unions see this as a student issue too, according to special ed teacher and UTLA chapter chair Gary Fraigun.

“I want students to know that the unions are fighting not only for the unions but also for the betterment of the students,” he said.

For students tempted to see Tuesday as a day off, history teacher Robert Docter has something to say about what the strike actually means.

“I think what students should know is that they deserve adults on their campuses who are not just educated and driven and smart, but also who are paid well and they are paid in a way that is reflective of what our students deserve,” Docter said.