I guess it was the atoms, coffee, coconuts and tractors that threw me off.


Now tell us what you meant when you said "Then all three of them have much to answer for." :)

Bob Hansen

On Oct 17, 2012, at 8:32 PM, Louis Talman <talmanl@gmail.com> wrote:

On Wed, Oct 17, 2012 at 5:49 PM, Robert Hansen <bob@rsccore.com> wrote:

How do you handle units? Like 12 miles or 14 hours?

That's a very good question. How does one handle units in general? What axioms does one use? If there are none, then Robert's earlier question about an exam is well-posed: "Is this mathematics?"
How do you show a rational function between polynomials, such that a student can see it and simplify it or factor it?

What on earth is "a rational function between polynomials"? Dare I ask, "Is this mathematics?"?

--Louis A. Talman
  Department of Mathematical and Computer Sciences
  Metropolitan State College of Denver