Union spokeswoman Stephanie Gadlin said late Wednesday the contract was ratified by 79 percent of the union's membership.
The Chicago Teachers Union said members, who voted on Tuesday, ratified the contract by a vote of 16,428 to 4,337. The contract now must be approved by the Chicago Board of Education, which is scheduled to meet later this month.
Teachers walked off the job Sept. 10, idling 350,000 students in the nation's third-largest school district for seven days before the union's delegates agreed to suspend the strike - and return to classes - pending the outcome of the official vote on a tentative contract.
