Education Minister Anthony Garcia says his ministry will be opening all schools on Friday 7th despite the planned action by TTUTA.
Minister Garcia is also asking teachers to remember their responsibility to their students.
He said he could not say if teachers could face disciplinary action but added that if it comes to that he will have to speak with the Chief Personnel Officer.
On Wednesday, TTUTA president Lynsley Doodhai advised parents of students to keep their children home on September 7th.
The Joint Trade Union Movement has called for a day of rest and reflection.