I've chatted with colleagues at work a number of time on their kids and schools. Often, this revolves around what they see of the math and science (particularly physics) education that their kids get from their schools. Obviously, being physicists, they certainly do know quite a bit more than the average parent about the math and physics subject matter that the kids are learning. My colleagues at work certainly pay close attention to making sure their kids are doing their school work, etc., but some time, they also notice "strange" or not-quite-correct material that the kids are learning. Most of the time, it is more of the education approach that the students are put through that they found a bit odd, but there were times where they had to correct a few misleading or incorrect idea that they had come across.
So what about you? Are you a parent of a child or children that are in school and learning math and science/physics? Do you monitor closely what your kids are learning, and have you found a few things that you had to correct? Do the teachers of your kids know who you are and what you do for a living?