Behind the scenes, the parties worked furiously around the clock to settle. But acrimony had been ratcheting up for months, and both sides were determined to hold their ground.
With the Newton teacher strike over, statewide union leaders said they expect more districts elsewhere to demand that student mental health supports be included in new contracts.
Schools in Newton will reopen Monday after the city and teachers reached a tentative deal to end an acrimonious strike that lasted more than two weeks.