While hundreds of workers demanded better pay, the nation's second-largest school system canceled classes on Tuesday.
On Tuesday, thousands of Los Angeles school employees will strike for three days, closing hundreds of schools and suspending classes for 422,000 students.
LA support workers' union wants 30% pay increase; low wages make living in SoCal difficult.
The Los Angeles teachers' union has urged its 35,000 members to walk out in unity and avoid support worker picket lines.
On Monday night, LAUSD director Alberto Carvalho tweeted that all schools would be closed tomorrow.
The statement followed the district's support staff and teacher groups' Tuesday early walkout.
Los Angeles Unified, the nation's second-largest school system, said they were working around the clock to avoid a strike earlier in the day.
A support staff and teacher strike would close over 1,000 schools, so they advised parents to start child-care planning.
The strike has slowed families and rekindled parents' fury over COVID-19-related school delays.