The agreement was reached Monday, and pertains to re-opener negotiations over salary and other contract issues provisioned in a June, 2015, three-year contract.
The new tentative agreement provides for a 3.11 percent salary increase for local chapter members.
A school district press release said it took two meetings to come to terms.
Now, union members and the school district board of trustees need to vote to ratify the agreement.
Last week, the teachers union voted down a tentative agreement. Talks in that contract negotiation are expected to resume after the summer break.