I think the problem with how these new concepts are presented, is that they are taking these ad hoc methods of doing arithmetic and trying to turn them into alg

I think the problem with how these new concepts are presented, is that they are taking these ad hoc methods of doing arithmetic and trying to turn them into algorithms. My guess is that this is driven by the need children have to know how to get the “the right answer.” The traditional algorithms aren’t very intuitive, but they work. Trying to make an algorithm out of the various ways you can break up a problem, ad hoc, seems bananas.