Two sophomores approached my colleague Josh with a question: “How can we construct a fair 5-sided die?” Josh posed a prior question: Is it even possible to construct such a die? He fashioned an interesting argument from continuity: Consider two… Read More ›

# Math

## The view from college math

Rudbeckia Hirta (a clever pseudonym for a math professor who carefully keeps her true identity hidden) observes: Due to reasons beyond my understanding, high school math and college math are completely unaligned. The K-12 system sends us students whose knowledge… Read More ›

## Where visuals fail

Some of us couldn’t possibly forget the 1969 draft lottery, the new and supposedly “fair” system to pick who was going to be sent to Vietnam. My Algebra 2 class is studying probability and was remarkably interested in learning about… Read More ›

## High-school math in the 21st century?

What math applications are taught in high school? Principally parabolic arches and widget-manufacturing, of course. This is a bit of an exaggeration, but the principle holds. We teach applications like those rather than cryptography and models of voting. At the… Read More ›

## Martin Gardner for pennies

The Mathematical Association of America is selling a CD containing 15 Martin Gardner books (the entire collection of his Scientific American columns) for a mere $55.95 — or $44.95 if you’re a member!

## Math license plates

Winners and other entries in the Math License Plate contest.

## Risks and probabilities

We know that both adults and kids are notoriously bad at estimating probabilities. Bruce Schneier (one of the world’s leading experts on security, cryptography, etc.) has this to say concerning risks and probabilities: One of the things I routinely tell… Read More ›