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I think every mere mortal uses a variation on the "cluster problems" to do mental multiplication and division. But what about the lattice method, how is that b
by tylerritchie 17y ago
I think every mere mortal uses a variation on the "cluster problems" to do mental multiplication and division.
But what about the lattice method, how is that better than the standard algorithm for humans doing math on paper?
- flatline 17y agoYeah the lattice method was pretty cool, I don't recall seeing that before. I can't see any value teaching this to a 3rd grader unless they're absolutely sailing along in math and curious to learn more. Even then, I'm not really sure of the point, how does it reveal anything about multiplication?