CHICAGO (AP) — Chicago's teachers union leader says hundreds of thousands of students will return to classrooms Wednesday after delegates overwhelmingly voted to suspend a seven-day teachers strike.

Chicago Teachers Union President Karen Lewis told a Tuesday evening news conference that the union's House of Delegates voted about 98 percent in favor of ending the strike after hearing details of a tentative contract agreement. She says some members remained unhappy with some of the economic terms of the proposal.

Lewis says union leaders recognized they "couldn't solve all the problems of the world with one contract and it was time to end the strike."

The teachers walked out last week over issues including evaluations and job security and students have been out of school for seven days.