I believe that this is a bad idea. I will continue to teach gun safety to my children and not leave it to the schools to do something that is my responsibility. If you choose to not view this as your responsibility and turn over good home training to your wonderful Arizona school systems that reflect your values, then I wish you luck with that.
http://www.putfile.com/media.php?n=03084899
And you can continue to frame your opposition as some form of dedicated parenting, but you'd still be wrong.
The choice is not between good instruction and bad instruction, but between some instruction and no instruction.