Elementary School Math Curriculum

If you were in charge, what would elementary school children (that is, grade 7 and below), be expected to learn before going to high school.

I've asserted nothing other than before a certain age children are incapable of abstract reasoning. This is indisputable since a newborn is clearly incapable of this type of reasoning, whereas a fully developed adult is not.  Therefore somewhere between these two ages a child must develops this ability.  I didn't even go as far as to draw a single conclusion from that one fact.  Everything else that you think I said is a product of your own insane delusions.