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Thousands of teachers march in the rain through Los Angeles, California on January 14, 2019, on the first day of the first teachers strike in 30 years targeting the Los Angeles Unified School District (LAUSD). - Teachers of the LAUSD, the second largest public school district in the US, are striking for smaller class size, better school funding and higher teacher pay. (Photo by Frederic J. BROWN / AFP) (Photo credit should read FREDERIC J. BROWN/AFP/Getty Images)

Thousands of teachers march in the rain through Los Angeles, California on January 14, 2019, on the first day of the first teachers strike in 30 years targeting the Los Angeles Unified School District (LAUSD). - Teachers of the LAUSD, the second largest public school district in the US, are striking for smaller class size, better school funding and higher teacher pay. (Photo by Frederic J. BROWN / AFP)        (Photo credit should read FREDERIC J. BROWN/AFP/Getty Images)

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Striking public school teachers and their supporters march during the 34th annual Kingdom Day Parade on Martin Luther King Jr Day, January 21, 2019, in Los Angeles, California. (Photo by Robyn Beck / AFP) (Photo credit should read ROBYN BECK/AFP/Getty Images)

Striking public school teachers and their supporters march during the 34th annual Kingdom Day Parade on Martin Luther King Jr Day, January 21, 2019, in Los Angeles, California. (Photo by Robyn Beck / AFP)        (Photo credit should read ROBYN BECK/AFP/Getty Images)

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A woman holds a sign reading 'strike' in Spanish, as striking public school teachers and their supporters march during the 34th annual Kingdom Day Parade on Martin Luther King Jr Day, January 21, 2019, in Los Angeles, California. (Photo by Robyn Beck / AFP) (Photo credit should read ROBYN BECK/AFP/Getty Images)

A woman holds a sign reading 'strike' in Spanish, as striking public school teachers and their supporters march during the 34th annual Kingdom Day Parade on Martin Luther King Jr Day, January 21, 2019, in Los Angeles, California. (Photo by Robyn Beck / AFP)        (Photo credit should read ROBYN BECK/AFP/Getty Images)

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Thousands of teachers march in the rain through Los Angeles, California on January 14, 2019, on the first day of the first teachers strike in 30 years targeting the Los Angeles Unified School District (LAUSD). - Teachers of the LAUSD, the second largest public school district in the US, are striking for smaller class size, better school funding and higher teacher pay. (Photo by Frederic J. BROWN / AFP) (Photo credit should read FREDERIC J. BROWN/AFP/Getty Images)

Thousands of teachers march in the rain through Los Angeles, California on January 14, 2019, on the first day of the first teachers strike in 30 years targeting the Los Angeles Unified School District (LAUSD). - Teachers of the LAUSD, the second largest public school district in the US, are striking for smaller class size, better school funding and higher teacher pay. (Photo by Frederic J. BROWN / AFP)        (Photo credit should read FREDERIC J. BROWN/AFP/Getty Images)

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Thousands of teachers march in the rain through Los Angeles, California on January 14, 2019, on the first day of the first teachers strike in 30 years targeting the Los Angeles Unified School District (LAUSD). - Teachers of the LAUSD, the second largest public school district in the US, are striking for smaller class size, better school funding and higher teacher pay. (Photo by Frederic J. BROWN / AFP) (Photo credit should read FREDERIC J. BROWN/AFP/Getty Images)

Thousands of teachers march in the rain through Los Angeles, California on January 14, 2019, on the first day of the first teachers strike in 30 years targeting the Los Angeles Unified School District (LAUSD). - Teachers of the LAUSD, the second largest public school district in the US, are striking for smaller class size, better school funding and higher teacher pay. (Photo by Frederic J. BROWN / AFP)        (Photo credit should read FREDERIC J. BROWN/AFP/Getty Images)