COLLIER COUNTY, Fla. - "Teachers are in a tough spot," said Jonathan Tuttle, the Executive Director of the Collier County Education Association.

The first school bell rings on August 19th. This year, teachers might be keeping a closer eye on the clock.

"In Florida, it's illegal for teachers to strike or to have blue flu and stay away from the school, so the only club in their bag really is to work to rule. which means you work the 7 and a half hour day and not a bit more," said Terry Clark, an elementary school teacher.

Tensions are still high for teachers and the union over the School Board's recent decision to deny their salary step increase.

"They should've known the impact it was going to have on the schools and the teachers," said Tuttle.

Teachers, like Terry Clark, who has been a part of the district for the last 8 years.

"I know that teachers are teachers, they're going to give 110% in those hours, they always do they always put children first."

But Clark said they won't be willing to do much more.

"I'm not sure how it will all turn out but I think a very conservative estimate is that teachers work at least 10 hours free a week more than their paid for, some double and triple that, and I think parents should be concerned that if they work to rule, I don't know how that can possibly help lessons and achievement and so on."