## Wild About Math bloggers 11/26/10

[ The current installment of Wild About Math Bloggers! is at Equalis. Here is last week's episode. ]

I hope you all had a wonderful Thanksgiving Day. Here's this week's roundup.

I'm so in love with James Tanton's work. He recently sent me a half dozen of his books to review. It'll take me time to digest and review them but, in the meantime, let me recommend some of his 90 YouTube videos which I have thoroughly enjoyed which will give you a good feel for his teaching style and for his very fluid way of thinking.

- Twinkle Twinkle and Math. A fun amaze-your-friends kind of thing you can do with something called Kruskal's principle.
- An explanation and a clever application of the Pigeon Hole Principle.
- What does it mean for something to be a 1.6-dimensional object? What does this have to do with fractals?
- Can you turn a hollow rubber ball inside out? How about a donut?
- A proof of Heron's formula for the area of a triangle given only the three sides.

The Math Teachers At Play carnival is up at Point of Inflection.

I always like it when Brent publishes an article at The Math Less Traveled. The mathematics of human knots is a thought-provoking and very gentle introduction to knots. I absolutely love this question:

If n people stand around a circle and randomly take one another’s hands, what is the probability that they form a knot?

BBC: The Story of Maths is a great introduction to the subject in the context of history. Hat tip to Grey Matters. Here's Part I. See Grey Matters for the other three parts.

[youtube]http://www.youtube.com/watch?v=gLbR5jl7UAM[/youtube]

Courtesy of Math Fail, here's a good reason to be wary of Fox polls.

Alex Bellos has a fun post, Dozenalists unite! Should we abandon base 10 arithmetic for base 12?

Xah Lee has catalogued Mathematica Logos thru its history.

Here's a slightly dated (July 2009) but very encouraging CNN Money article for students who are majoring in Math or thinking about doing so.

The top 15 highest-earning college degrees all have one thing in common -- math skills. That's according to a recent survey from the National Association of Colleges and Employers, which tracks college graduates' job offers.

"Math is at the crux of who gets paid," said Ed Koc, director of research at NACE. "If you have those skills, you are an extremely valuable asset. We don't generate enough people like that in this country."

Hat tip to Virtual Math Tutor. Also from this great blog, which I just discovered, is a link to a fun YouTube video, Amazing things about numbers.

[youtube]http://www.youtube.com/watch?v=SLabh2lUChc[/youtube]

Tune in next week for the next installment of "Wild About Math bloggers!"

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