Parents of children with special educational needs have expressed concern as their schools will close during eight days of upcoming strike action.
Support staff including bus drivers, canteen workers and classroom assistants will take part in the action.
It is part of an ongoing pay dispute.
One parent, Ann-Marie O'Neill, said it feels like her son is being "forgotten".
Ms O'Neill's 10-year-old son Eoin, who has a rare genetic condition, attends Glenveagh School in Belfast. The school has said it will close on the eight strike days due to the "degree of staffing deficiency and associated risks".
Ms O'Neill said the disruption will have a "massive impact" on Eoin, who is heavily reliant on routine.
"Once again it's the children with special needs who are disproportionately impacted," she said.
"The mainstream schools are, at most, impacted for a day but the children who are the most vulnerable are just not being seen and we feel like we're not being heard and that our children don't matter.
"If this was impacting mainstream schools people would be shouting from the rooftops and it wouldn't be allowed to happen."
