Exactly.
Quit teaching parlor tricks in elementary arithmetic, and teach the procedural ways that work FIRST.
DD always finds the laborious, old-school explanation of things like this to suit her learning needs better.
It's been horrifying to me that ten minutes worth of live instruction in a procedural method (including an quickie explanation of where it comes from and why it works that way) do more than WEEKS of problems based on individual special case examples.
This nonsense of 'construct your own basic understanding' through 'seeing' a variety of approaches is just... weird.
I shudder to think how little the average learner gets out of it. It's no wonder DD sees algebra students who can't work with fractions.
