NATIONAL CITY, Calif. (KGTV) - Elementary school teachers in National City will vote Monday on whether to go on strike. The teachers are frustrated with the way contract negotiations with the National School District for the 2017-2018 school year have gone. "The District's behavior has been reprehensible from the very beginning of negotiations. The NSD's bargaining team has not tried to reach a settlement with the teachers for months,” said National City Elementary Teachers Association (NCETA) Bargaining Chair Irma Sanchez. A spokesperson for the National School District told 10News they are in mediation and cannot comment at this time. The NCETA will announce an official decision Wednesday. They expect to approve the strike.