The Superintendent of the Department of Education in Guam says there are still around 80 teaching positions vacant, a week out from the start of school.
Juan Flores says the department has been conducting an off-island recruitment drive to try and address the shortage.
He says in the meantime there will be some shuffling of resources.
"What we're prepared to do is to put some administrative staff in the classroom to make sure they're covered and to even pull people out from the central office staff to make sure that we cover those classes. We're also in a position to put some substitute teachers in until we get certified teachers who are there to teach in those classes."
The department is also trying to get retired teachers back into the workforce.