Schools will be under pressure when the new term begins in a few weeks time because of a shortage of teachers.
There are currently 643 primary school jobs advertised on the Education posts website, with 456 jobs on offer at secondary schools across the country.
Principals say the cost-of-living crisis and the chronic shortage of housing is partly to blame.
Labour's Education spokesperson, Aodhán Ó Riordáin says the Department of Education isn't doing anything about it:
"It appears the Department of Education is allowing this to continue. "
"There are solutions out there, we've spoken in the Labour Party about the Dublin allowance that would encourage more teachers to be able to live in Dublin. "
"But certainly this is a problem that the department haven't grappled with at all and as a result, schools can't staff themselves and children are not going to be able to be educated by trained teachers come September."