Pupils will study remotely instead.
Schools will not reopen for Leaving Cert students next week after a major U-turn by the government tonight.
The pupils will continue to study remotely for the rest of the month, like other students.
Leaving Cert students were due to resume classes in school for three days a week from next Monday.
But earlier today, teachers belonging to the ASTI were told by the union not to co-operate with the plans. They said members should only teach remotely due to health and safety concerns.