Subtraction Part 1: RepresentationsApril 21, 2020
In a recent blog post I talked about the importance of starting from where things make sense. This may be one of the best ways to help your kids with math at home. If you don’t know what to do, take a step back. Then take another. Keep going back until things make sense. Then follow the bread crumbs back up till you’ve figured out the new thing.
That’s all good in theory. But what’s missing is the details. (And there are a lot of details in math!) So I’m going to try to touch on some of the foundational visuals and representations that ground the meaning of mathematical symbols and operations at an elementary level.
When it comes to arithmetic, there are always two parts: understanding the operation, and understanding how it works in base 10. Today, I want to do just part 1 of that, as it pertains to subtraction. I’ll follow up with the base 10 connection soon.
As always, I hope this helps!