squareCircleZ

How much of the Earth do you need to sustain your lifestlye? Check out this ecological footprint quiz.

Charlie explains to his class about the Monty Hall problem, which involves Baye’s Theorem from probability.

Wanting a lucrative career path? Try the security industry in Maryland, USA.

This is an interesting tutorial on how matrices are used in Flash animations.

Here are 10 interesting 3D math/physics simulations from Prentice Hall.

A musical number with some dodgy mathematical history constitutes this week’s Friday math movie.

Who is really responsible for high oil prices…?

In this month’s newsletter:

1. Your updated IntMath information
2. Thanks for your positive comments
3. What’s New in Interactive Mathematics
4. Answer to the Apples and oranges Puzzle
5. Asymptotes
6. From the math blog
7. Final thoughts – your future

A reader pointed out that one of my Flash interactives (involving matrix operations) was broken and needed fixing.

Algebrator is an interesting product – but I’m not sure that I can recommend it.