Anger over stalled contract negotiations bubbled to the surface Wednesday night when elementary school teachers took their frustration to the streets in National City.
The impasse involves the number of furlough days, class sizes, the school calendar and the length of the contract.
The superintendent says teachers have not been willing to make concessions.
He says what the district has asked from the teachers is very much in line with what other school districts in the county have done.
The teachers union says it is ready to go on strike, if necessary.
"In addition to money issues, the district has decided to take away teachers rights, worsen working conditions. in our opinion, that is not showing us the respect we deserve," said Linda Cartwright with the National City Elementary Teachers Association.
About 350 elementary school teachers have been working without a contract since July.