Hmmm. Does it help, though? I mean is there any actual evidence that it works? I tend to be a bit sceptical when it comes to "innovations" in the education field, so I am also trying to be mindful of my own bias here, but so far I was not able to make sense of things that I have seen, or got a glimpse of any deeper intuition. And I went to grad school for applied maths. Maybe I am too old? Or maybe I already got the intuition they were trying to convey? Or maybe I was not exposed to this stuff enough to say? Could be any of these I guess.

> just a slightly obtuse word problem

Heh, I was imagining it was about overlapping arrangements that are divided equally or something. So is it really just asking for 6? In that case yes, its not really insane, just questionably worded.