Nearly half of Belfast elementary school teachers will strike today.
NASUWT members at St Patrick's Primary in New Lodge reported that there was no response to the type of worries they had posed about "adverse management practices".
The end of the afternoon is the Council for Catholic Preserved Schools (CCMS) and the Council of Governors in St Patrick, which has close to 550 pupils, the latest complaint to prevent a strike.
Trade union representative Justin McCamphill said he had come too late throughout the day.
"The industrial action will continue, but we are still willing to cooperate," he said. The union said that culture teachers should have expected to have a negative impact on their working conditions, health and well-being.
Mr McCamphill added: "At every stage, we tried to work with the employer to solve the issues. The events met, but nothing was resolved. The conditions are as bad as ever.
"The management style does not contribute to a healthy working environment for employees or learners.
"This dispute is characteristic of St Patrick, but as a union we see more and more dissatisfaction. With the reduction in funding, there is stress for teachers, discontent and an extremely difficult working environment."
Yesterday, Chairman of the Board Tony Fahy issued a letter to his parents on behalf of the governors.
It stated: "NASUWT has warned us that up to nine teachers can take action in any of the days given for the strike. On this basis, we decided that we should strive to ensure that the school is open to all pupils and we have prepared them accordingly school basis.
"We are deeply disappointed that some NASUWT members have decided to raise their problems as a matter of industrial action.
"Our firm belief is that real issues pertaining to care, including those held by school leaders, can and should be addressed through an open and fair dialogue, and above all through the use of agreed procedures that are already in place a place for school leaders and teachers, but not yet used. "
CCMS said in a statement that it was disappointing that the resolution was not reached.
"The CCMS fully values teachers' right to industrial action, but we do not believe that such a measure is proportionate or justified in this case. We firmly believe that the issues at the center of this dispute can best be solved with the help of an open and honest a dialogue that seeks to ensure a balance between the two sides, "he said.
A further item at school is scheduled for 20, 22, 27, 28 and 29 November.