## Archive for April 20, 2012

### A Busy Week — Fun at NCTM and USASEF

The 2012 Annual Meeting of the National Council of Teachers of Mathematics (NCTM) is happening next week, April 25‑28, in Philadelphia, PA. As it winds down, the USA Science and Engineering Festival starts in Washington, DC, and will occur April 28‑29. It will be a busy week for me — I am performing twice at each event! If you happen to be attending either event, please stop by and say hello.

*At the NCTM Annual Meeting…*

**To 10 and Beyond Using Free Illuminations Resources**Friday, April 27, 8:30-10:00 a.m.

Salon A/B (Philadelphia Marriott Downtown)**Using Free NCTM Resources to Promote an Understanding of Proportion**Friday, April 27, 1:00-2:30 p.m.

Salon A/B (Philadelphia Marriott Downtown)

*At the USA Science and Engineering Festival, Washington, DC…*

**Puns and Puzzles**Saturday, April 28, 2:00-2:30 p.m.

Franklin Stage (Washington Convention Center)**Puns and Puzzles**Sunday, April 29, 3:00-3:30 p.m.

Franklin Stage (Washington Convention Center)

I am expecting an engaged crowd at each event, and I am hopeful that my presentations are received better than this…

A mathematician and an engineer attend a physics lecture. The topic is Kulza-Klein theories involving physical processes that occur in 9-dimensional space. The mathematician is enjoying the lecture, but the engineer is confused and frustrated. At the end, the mathematician comments about how wonderful he thought the lecture was. The engineer asks, “How do you understand this stuff?”

The mathematician replies, “I just visualize the process.”

“But how can you possibly visualize something that occurs in 9-dimensional space?”

“Easy,” says the mathematician. “First, I visualize it in

n-dimensional space, and then I letn= 9.”