[Monitor]

The process you're describing was automatic for us before the advent of technology because we were drilled in fundamentals, and knew the addend or subtrahend of any two numbers since second grade, cold. When you concentrate on conceptual mathematics to children who don't reflexively know the basics, you are wasting your time, just as you have wasted your time with a contrived example.

If you have evidence that the fundamentals aren't also being taught, then provide it. Otherwise, your argument is based on an unsubstantiated assumption.

[FredZarguna]

I’ve taught undergrads physics for years. I know the fundamentals aren’t being taught.