The strike, the first in America's second-largest school district in 30 years, began nearly a week ago, when teachers voted to go on strike to protest school officials' rejection of the teachers' request for a 6.5 percent rise in pay. Marches and picketing punctuated the six days of protest, and agreement was reached after 21 hours of bargaining between the two sides.

The three-year contract provides for a 6-percent pay rise for teachers, with 3 percent coming right away and 3 percent ongoing and also removes the district's power to raise class size unilaterally. Also in the deal were a promise from district officials to reduce class size progressively during a four-year period, a commitment to add more than 300 nursing positions across the district during the next three years, and plans to add more counselors and librarians in the coming years.

The deal, if approved by the School Board and county Office of Education regulators, expires at the end of June 2022.

The Los Angeles district was the largest school district to strike in recent months. About the same time that the L.A. settlement was announced, teachers in Denver voted to go on strike. Other teachers in several other states demonstrated in 2018, with varying degrees of success:

• Teachers in Arizona won some concessions after a six-day walkout.
• Kentucky lawmakers overrode the governor's veto of spending bills providing more funds for teachers.
• Teachers in Oklahoma won some concessions but ended a nine-day strike without gaining more.