An Irish National Teachers' Organisation Survey shows there are 951 vacant posts nationwide.
Schools are increasingly asking unqualified or teachers who aren't registered with the Teaching Council to cover some absences.
The INTO has described it as an enormous crisis.
Man Withdraws Appeal Against Severity Of Sentence After Threatening To Kill Simon Harris And Family
Taylor Made For Ultimate Farewell - Katie Takes In Croker Before Big Announcement
Wicklow TD Stands Down From AI Chair Amid Drink-driving Investigation
Nature Minister Condemns ‘illegal’ Fire within Wicklow Mountains
Wicklow RNLI Rescue Stricken Pair After Capsize Of Rowing Boat