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For questions related to teaching mathematics. For questions in Mathematics Education as a scientific discipline there is also the tag mathematics-education. Note you may also ask your question on http://matheducators.stackexchange.com/.

7 votes

What should be taught in a 1st course on Riemann Surfaces?

These answers seem to have almost nothing on Riemann surfaces. I guess I am just too old-fashioned. In a first course on Riemann surfaces, I would like the student to get an understanding of the Rie …
Gerald Edgar's user avatar
  • 41.1k
10 votes

Not especially famous, long-open problems which anyone can understand

Some pages: Open Problem Garden The Open Problems Project edited by Erik D. Demaine, Joseph S. B. Mitchell, Joseph O’Rourke
53 votes
Accepted

Blackboard rendering of math fonts

I often give this to Freshmen. Learning the right way to start with is easier than trying to change later.
Gerald Edgar's user avatar
  • 41.1k
7 votes
Accepted

Good examples of random variables whose image is not a measurable set?

An analytic set that is not a Borel set...see this post* from long ago. Such an analytic set is a continuous image of $[0,1] \setminus \mathbb Q$, and thus a Borel image of $[0,1]$. *From: e...@m …
Gerald Edgar's user avatar
  • 41.1k
7 votes

Simple definition of the Hausdorff measure using squared paper

As Charles said, this would be the box-counting dimension (a.k.a. Bouligand dimension or Minkowski dimension). Not the Hausdorff dimension. And for the measure it would usually not converge so that …
Gerald Edgar's user avatar
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20 votes

Interesting applications (in pure mathematics) of first-year calculus

The interesting application in Spivak's Calculus is the proof of the irrationality of pi. I guess this is the proof due to Niven.
25 votes

What are the most misleading alternate definitions in taught mathematics?

A function is a collection of ordered pairs such that ...