A Northern Territory policy has seen so many students back in regional schools that teachers say they are overwhelmed.

Teachers in the NT took industrial action against funding and staff cuts throughout last year, saying they were left with larger and larger classes but no new resources to match.

Now, a Federal Government campaign is employing locals to work as truancy officers to get more Indigenous children to attend schools in the bush.

The program has seen plenty of success already, so much so that teachers say it has exacerbated their existing needs and they will soon go on strike once more.

Australian Education Union NT president Matthew Cranitch says that while the policy has been a success, it has had unintended outcomes.

“Teachers are basically annoyed that, this year particularly, we have seen an increase in student numbers caused by the truancy officers... yet we have less teachers teaching more kids,” Mr Cranitch told the ABC.

“It is an issue teachers feel very strongly about and in part has caused us to continue our strike campaign.”

Northern Territory teacher will strike for two hours next Tuesday from 1:30pm.

Public Employment Minister John Elferink has slammed the repeated industrial actions of Territory teachers.

“A militant teachers union engaged in disruption is only going to annoy parents,” he said, encouraging staff to sign on to the most recent bargaining agreement.

“I would encourage teachers to sign up to the EBA, get your extra $95 per pay and then engage with the system.”

Mr Cranitch says teachers will not back down.

“This is something teachers feel strongly about,” he said.

“There will not only be continued strikes but there will be bans on activities in their workplaces.”