Can The Mystic Ball read your mind?

Check out "The Mystic Ball" at

UPDATE: This is not the same Mystic Ball site that was originally posted in 2006, which is a shame because that was a good one.
http://www.mysticalball.___/

Did it read your mind? Did it guess the right symbol?
More importantly, can you explain how it was done?

Have you tried Kakuro?

"Do you Su Doku?"

That was the catchphrase last year when Su Doku became the latest national craze. There are plenty of Su Doku books you can buy and there are free puzzles available on the web.

Are you remember for a new challenge?

Try Kakuro, a combination crossword and number puzzle. Free puzzles can be found at:
http://www.divingforbananas.com/kakuro/

Give them a try. Warning: once you get the hang of them, they become highly addictive.

Texas Instruments Activities Exchange

I've been doing some work with Texas Instruments graphing calculators.
TI has a website called the Texas Instruments Activities Exchange, located at:

http://education.ti.com/educationportal/activityexchange/activity_list.do?cid=us

Has anyone downloaded activities from the site? Which ones? What subjects?

Has anyone submitted an activity to the site?

Welcome to Mr. Burke's Blog

Hello. I am a mathematics teacher in a New York City High School.
This page is devoted to teaching math, and is published for the benefit of my students. However, everyone is welcome to participate.