Ombudsman for Children Emily Logan has said children in care are more likely to experience educational difficulties compared to the general population.
Ms Logan published a report today that outlines the difficulties that children in care face in the education system and recommends how to break down these barriers.
Speaking on RTÉ's Morning Ireland, she said it was unacceptable that there is no information on the educational outcomes of children in care.
"We need to gather data on these children," she said.
"Sometimes the people that are teaching these children may not know that they're in care, so we do need to provide information for those people who are working directly with them."
Ms Logan said children in care
She said: "We've had children as young as 15 and 16 changing placements on a monthly or two monthly basis, which means you change a family, you change a school.
"So you can imagine how difficult it is for a child to try to make new friends and to engage in the education system."