(Portland, OR) -- Contract negotiations continue today between Portland Public Schools and the Portland Association of Teachers. Yesterday, union members and parents of students rallied outside district headquarters as teachers marked day two of the strike. On Wednesday, the school district asked the state of Oregon to give it the funding it needs to fulfill the union's demands. The district says the teachers union is calling for changes that would cost 220-million dollars more than it currently has in its budget. The Portland Association of Teachers called for a strike Tuesday night following months of failed contract negotiations.