I've been watching my wife teach the kids second-g...
# devlog-together
k
I've been watching my wife teach the kids second-grade math for a few weeks now with the glimmer of an idea in my head that just came out. The tree notation for addition and subtraction shows the symmetry between them, and also the symmetry between operands. I know it's valuable, because it got instantly adopted in lessons, where most of my ideas get gently humored and booted out of the room. I'd never have the sense something like this was valuable before hanging out here ❤️
i
What do the little boxes on the top and right mean/do?
k
It's just a picture like I might draw on paper, that's all. I'm using the trees to represent addition and subtraction by flipping them. The other boxes are just trying to explain that..
The top row of the tree is always provided. The bottom row has an empty box. But if there are two boxes either can be empty.
Oh you mean the UI around each rectangle! The top bar is for moving a box. The lines on the side are for adjusting width. (Height becomes whatever it needs to be.) Sorry that's a lot of distraction in the picture.
m
Prolly already known but this popped to mind

https://www.youtube.com/watch?v=sULa9Lc4pck

i
I've never seen that before. That's super cool
k
Looks like a graphical representation of Prolog applied to arithmetic.