Should logic be taught in elementary?

[Angrboda]

The logic book by Gensler that I'm studying from now has a quiz containing a set of simple arguments, some valid some not. He says that most students flunk it without prior training. It's found here http://www.harryhiker.com/logic.htm

The question is, however, how much do they improve with training?

I'm skeptical of attempts to "teach critical thinking." I have yet to see any demonstrable delta for before and after, and I'm inclined to believe that you can't teach good thinking, no matter what you label it. Logic is one of my weak spots; my eyes glaze over at formal logic. So perhaps I'm biased. But I don't think it should be considered a core competency in the absence of demonstration that teaching it leads to measurably better thinking. I'd sooner see study skills taught first.

I have a friend who teaches business at a nearby university, and one of the classes he teaches is in critical thinking. He hosted a ten part presentation on critical thinking, basically paralleling the content of his class. I've learned the proper names for a few fallacies that I didn't have a name for before, but not much else.

I'm skeptical. That's all.