DUBLIN, Ga. – A Georgia teacher found out the hard way you’re apparently not allowed to espouse negative opinions about President Obama in the classroom.

The NAACP is accusing Dublin Middle School teacher Nancy Perry of saying “several negative comments about the President, including that he is not a Christian as he claims to be. She said that any parent who supports him is not a Christian. She challenged her students to prove their Christianity,” according to a letter posted on Facebook.

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Perry called the characterization of her statements “untrue” and said she was advised against speaking to the media.

“We work to build bridges with students, not build walls,” district superintendent Dr. Chuck Ledbetter tells WMGT.

“And talking politics, especially giving political opinions, can be very divisive.”

Parents who complained also objected to what they thought was a slow response from the district. They say a conference with the teacher took place “several days” later and it included her husband, who is a member of the Dublin City Schools board.

“A board member being in a parent-teacher conference can tip the balance, or at least from the appearance, tip the balance of fairness,” according to Ledbetter. “It is not a practice that we can allow.”

After the parent brought the situation to the attention of the school board, the superintendent says it was handled, though not saying what the punishment was, if any.

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“We’ve had meetings to make sure there is an understanding that this is not appropriate,” Ledbetter says. “You try to be appropriate to the situation. It’s one of those that you don’t want repeated.”

Some left-wing bloggers are suggesting Perry should be fired.

“I can’t imagine many other school districts where this teacher would have been allowed to have kept her job,” writes Alan Wood.

Try District of Columbia Public Schools.

Last fall, a sixth grader McKinley Middle School teacher distributed a Venn diagram with instructions for students to draw comparisons between President George W. Bush and Adolf Hitler.

The worksheet read “both men abused their powers.”

After the assignment received widespread attention, the school district sent a letter home, saying in part:

” … the assignment reflected extremely poor judgement in this instance and we, as a school community, are very sorry this happened. Our teacher deeply regrets this mistake as there was no malice intended, no effort to push any certain political ideology, and any suggestion made to malign the presidency or make any comparison in this offensive way.”

There was never any news report about about punishment for the teacher – who was never even named.

“We’re always trying to learn from our mistakes,” Ledbetter says about the Dublin accusations.

“I think that is an important piece to teach our students too. We’re not perfect, but we’re always going to address our issues and learn and move forward and grow.”