Here's how Neil deGrasse Tyson teaches us about astrology. The idea is to get people to realize that astrology is bunk.
My daughter's teacher (with an M.Sc. in chemistry) used this technique on her Grade 5 class. I dare say it did some good in promoting critical thinking.
Why can't we do the same with some other pseudoscience topics, like Young Earth Creationism? Why can't we teach critical thinking by getting young students to think about the consequences of a deluge that wiped out all of humanity in 2600 BC?1 They could discuss why the Egyptian records failed to notice that every single Egyptian lost their life sometime during the third dynasty when the pyramids were being built. They could do a simple calculation to see how you get from Noah and his family to 45 million people in the Roman Empire. (And possibly 300 million people in the world at about the time when Julius Caesar was born.)
Why can't we do that? Because religion has special protection from this kind of critical analysis. You can attack astrology but you can't attack anything religious no matter how silly it might be.
We should try and change that. Let's have more classroom discussion about the conflict between science and some religious beliefs. The well known seminar by Ricky Gervais (below) shows how you could do it. It should be required viewing in all Grade 5 classrooms!
1. They could also think about the kind of God who would do this.
[Hat Tip: Friendly Atheist: The Quick Astrology Test]