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In this Newsletter:

1. Math tip – Quadratic formula by completing the square – easier method
2. Resource – Curriki (a curriculum wiki)
3. More funny GraphJam graphs
4. Friday math movie: pentatonic scale
5. MathJax – render math on the Web on all browsers
6. Final thought – things that count

Here is a list of math lessons and other resources that you may find useful.

Here’s another method for getting math onto a Web page – MathJax.

The pentatonic scale is popular across all cultures. Some math is involved here!

Here are some more funny graphs courtesy of GraphJam.

Here’s an easier way to derive the Quadratic Formula using completing the square.

In this Newsletter:

1. Math tip: Happy "e" Day
2. Funny graphs – from GraphJam
3. Math tip: Multiplying matrices
4. Friday math movie: Hans Rosling’s 200 Countries, 200 Years, 4 Minutes
5. Math tip: Determining economic risk – Black Scholes formula
6. Friday math movie: Doodling in math class – binary trees
7. Final thought – security

The Black Scholes Model is one of the many formulas used by the mathematical financial wizards to price options. How does it work?

This article points to 2 interactives that show how to multiply matrices.