We sent men to the moon and back with old math, math is math, it is exact there is no reason to…

EnragedNY, if you’re advocating bringing back the slide rule (which is how we got to the moon and back), I’m all for it. If the purpose is to teach number sense, then the tactile sense of number is a great way to do this.

I have a suspicion that this isn’t what you meant, though.