The state NAACP is calling for those teachers and staff involved in writing up those math problems involving slaves to be fired.

Some parents of students at Beaver Ridge Elementary in Norcross are demanding an apology and the Gwinnett county school system is launching a full investigation. 

"I refuse to believe the teacher or teachers responsible for allowing it to go forward did not understand fully what they were doing. We need to understand how deep this is," said state NAACP president Ed DuBose told The Atlanta Journal-Constitution. 

The story has made the national media.  One of the math problems reads: "Each tree has 56 oranges. If eight slaves pick them equally, then how much would each slave pick?" 

Another was: "If Frederick got two beatings each day, how many beatings did he get in one week?" 

Meanwhile, Channel 2 Action News reports that while one teacher is alone responsible for writing the questions -- all nine third grade teachers actually saw them before they were handed to students. 

That's prompted Gwinnett County school system leaders to launch a full Human Resources investigation.  The system isn't releasing the name of the teacher who wrote the offending questions. 

The school says its policy to try and reinforce social studies lessons through math problems -- though quickly adding these particular questions were "poorly written." 

"These particular questions were an attempt at incorporating some of what students had been discussing in social studies with their math activity," Gwinnett schools spokeswoman Roach said in a prepared statement. 

"I think I'm still in shock," one parent says.  "Who would think of such questions to ask third grade children?"