ACT public schools will be closed for the second time next week as teachers plan for another strike.
Education directorate director-general Jo Wood said she decided to close schools for a full day on June 11 because the directorate expects a majority of teachers to participate in the industrial action.
"We will be unable to guarantee safe and appropriate supervision of all students on site during this time," she said.
Ms Wood said the safety of students and staff was the directorate's highest priority and acknowledged the closures would have a "significant impact" on families.
ACT public school teachers and staff went on strike for the first time in 15 years on May 22.
The strike ran for two hours in the morning and schools were closed until 10.30am.
It will be up to individual out-of-school hours care providers if they operate for extended hours on the strike day.
Schools will be in touch with families directly if different arrangements need to be made for assessments.
Australian Education Union members are striking for better conditions, resources and pay.
After 11 months of negotiations the government has not presented an offer.
In May, the education directorate labelled the bargaining as "complex", but union president Angela Burroughs said this was the first time the union had heard this complaint.
"It's a different excuse every time," Ms Burroughs said.
Teachers at the strike in May told The Canberra Times their students could feel the lack of resources in their classrooms.
"It's heartbreaking when I have students that say to me 'I feel like no one cares about me'," a college teacher said.
Education minister Yvette Berry said said she will continue to meet with the union "regularly and frequently" in order to "get a positive outcome".
On May 26, assembly members called on the minister to consider the outstanding union claims in "a comprehensive and timely manner".
The motion called on the education minister to report back to the assembly the day before the strikes, June 10, explaining the steps taken to progress bargaining and avoid further school closures.
