The Monty Hall problem revisited

This is one of my favorite problems because it always baffles me why its so hard to get to "know" the solution. Every time I come across and read it, it's like I'm seeing it for the first time.  Holding an intuitive notion of the solution always seems to elude me.

I came across it again today. This time on video explained by Keith Devlin who is a wonderful explainer.

http://www.stanford.edu/~kdevlin/Movies/MontyHall.mov

More about Keith, Monty Hall and why some math needs to be learned "top down" - at least according to Keith - coming soon.

Phantom Traffic Formula

Phantom Snarl?

Ever wonder why traffic snarls for no particular reason? Here's a mathematical explanation. (Formula below.)

Another math app added to the Apple Apps store

The Apple Apps store is starting to fill up with this kind of skills practice software. Since the only thing of interest for the kids is the game itself, there's not much learning going on here math-wise, unless you want kids to practice math facts they already know. But then, again, it's only a buck ninety-nine.

Tax Day Math

Doing homework 2.0

Link to story

Different...

Marketing Done Different
Friday, April 09, 2010
Consumer marketing expert and Harvard Business School professor Youngme Moon talks about how companies can stand out in a saturated market and how she's practicing what she preaches in selling her new book: Different: Escaping the Competitive Herd.



Source: Brian Lehrer Show 4/9/10

Math 2.0? I don't think so...

According to the students at Lincoln Middle School the Mathtrain.TV video (below) demonstrates Math 2.0 in action. Watch the video and see if you can tell me what my problem with it is.



Hint: This is Math 1.0 using Web 2.0 tools. What's missing? (See What is Math 2.0?)
Tweet me at @climeguy with your comment.