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# Category Archives: links

## CoM and Relatively Prime

A couple things to draw your attention to: The 90th Carnival of Mathematics is up over at Walking Randomly. There’s quite a lot of cool stuff in this edition, go check it out! The first episode of Relatively Prime is … Continue reading

## Introduction to Mathematical Thinking with Keith Devlin

I just learned from Denise at Let’s Play Math! that Keith Devlin is going to be teaching a course on Coursera called Introduction to Mathematical Thinking. It’s free and open to anyone with only a background in high school math. … Continue reading

Posted in links, teaching
Tagged Coursera, free, Keith Devlin, mathematical thinking, online
1 Comment

## Searchable tiling database

Just a link today—check out this awesome tiling database! It’s got tons of beautiful plane tilings (with information and further reading about each one) and many ways to search through the database. It’s a great way to find examples of … Continue reading

## Picture this

Picture this! is a very cool interactive thingy, made by Jason Davies, intended to get students (or anyone, really) thinking about some interesting math. Go play around with it and see if you can answer any of the listed questions … Continue reading

Posted in challenges, links, pattern, pictures
Tagged interactive, picture, rectangles, this
6 Comments

## Wythoff’s game at Three-Cornered Things

I’ve really been enjoying Zachary Abel’s series of posts on Wythoff’s game [Wythoff’s Game: Red or Blue?; A Golden Observation; The “Fibonacci”est String; Wythoff’s Formula], over on his blog Three-Cornered Things. The Fibonacci numbers show up in the strangest places! … Continue reading

## Nature by Numbers

This has been making the rounds of the math blogosphere (blathosphere?), but in case you haven’t seen it yet, check out Cristóbal Vila’s awesome short video, Nature by Numbers. Especially appropriate given that I have been writing about Fibonacci numbers … Continue reading

## Carnival of Mathematics 86

Welcome to the 86th Carnival of Mathematics! is semiprime, nontotient, and noncototient. It is also happy since and . In fact, it is the smallest happy, nontotient semiprime (the only smaller happy nontotient is 68—which is, of course, 86 in … Continue reading