From the department of teaching methods from outside the United States I’ve never heard of before, Carroll Diagrams:
I’ve used something like this before in geometry for sorting triangle types, but I never knew there was a name for it, nor did I think about sorting other math concepts in this way.
I started to brainstorm ways the diagram would work in higher math levels:
I know I’ve done sorting with graphic organizers before, but I don’t recall seeing this particular technique outside of geometry. Perhaps I’m just looking at the wrong textbooks.