JACKSONVILLE, Fla. -

A Jacksonville father is raising concerns about an activity at his son's elementary school that he says dealt with constitutional rights.

Now the disclosure of the classroom activity is attracting national attention.

Aaron Harvey says his fourth-grade son came home from Cedar Hills Elementary School one day with a piece of paper in his backpack with a message hand-written in crayon that read, "I am willing to give up some of my constitutional rights in order to be safer or more secure."

After reading the statement, Harvey wrote a letter to local legislators and the Duval County superintendent, saying that should not be taught in his son's class.

"Whenever you're talking about biased opinions being talked about in school, it needs to stop," Harvey said. "We need our kids to have a quality education where they can learn about our history, science, math, whatever, and form their own thoughts and opinions."

The school district said there was an event in which an attorney was brought in to speak to students the day of the activity as part of a lesson about the Constitution. It's what happened after the attorney spoke that is raising concerns.

"Our possible concern rests with a follow-up activity that may have been conducted after the lesson," the school district said in a statement. "A review and investigation will occur to determine the facts of that assignment."

Harvey said he doesn't feel the lesson was directly about the Second Amendment and gun rights, but more so about constitutional rights in general.

"My curiosity more runs along the lines of parents and children," said Harvey. "What sort of rights do they have to protect against people coming in and forcing their beliefs on your children?"

Harvey said there's no way his son wrote that on his own.

"That sentence, he's bright, but to come up with that exact sentence? That's not him," said Harvey. "At school, it bothers me. Personally, it really gets my blood going. It gets under my skin."

Harvey was so furious he wrote a letter to local legislators. When Channel 4's Scott Johnson stopped by the school, he ran into other students and their parents who remember this project.

"Where you are trying to sway a kid's beliefs, kids are impressionable. I don't agree with that," said parent Ronjula Dasher.