CHICAGO (AP) — Chicago Mayor Rahm Emanuel is turning to the courts to try to put an end to a teachers strike that's entering its second week and has left parents scrambling to make alternative child care arrangements for at least two more days.

The union and school leaders seemed headed toward a resolution at the end of last week, saying they were optimistic students in the nation's third-largest school district would be back in class by Monday. But teachers uncomfortable with a tentative contract offer decided Sunday to remain on strike, saying they needed more time to review a complicated proposal.

Emanuel fired back, saying he told city attorneys to seek a court order forcing Chicago Teachers Union members back into the classroom.

The strike is the first for the city's teachers in 25 years and has kept 350,000 students out of class, leaving parents to make other plans.