## Mental Mental Arithmetic!

Can you keep up with this guy??

## The Story of 1

Terry Jones (of Monty Python’s Flying Circus) goes on a humor-filled journey to recount the amazing tale behind the world’s simplest number. Using computer graphics, “One” is brought to life, in all his various guises. One’s story reveals how celebrated civilizations in history were achieved, where our modern numbers came from and how the invention of zero changed the world forever; and saved us from having to use Roman numerals today.

## International Pi Day

Today is international Pi day!

In the U.S. format today date is 3.14

## Happy Valentines Day!

On your TI83 press WINDOW and set the values to the following:

Press 2ND then ZOOM (FORMAT)

Highlight AxesOff and press enter.

Enter the following equations on your graphic (or graphing software)

To get abs(x) press 2ND then 0 (zero) then ENTER (as it is first in the list).

Now press GRAPH

Remember to reset the axes after you are done!

## Meet Mr H!!

It’s me!! ðŸ˜‰

If you canâ€™t see the video playing above here is the YouTube page:

“Meet Mr H!!”

## Triangle Song – James Blunt

James Blunt on Sesame Street!

If you canâ€™t see the video playing above here is the YouTube page:

“Triangle Song – James Blunt”

## Can you draw a perfect circle?

Freehand Circle Drawing – World Champion

If you canâ€™t see the video playing above here is the YouTube page:

“Freehand Circle Drawing – World Champion”

## The Magical Moebuis Strip

If you canâ€™t see the video playing above here is the YouTube page:
“Moebuis Strip”

## The Klein Bottle

The Klein Bottle is a surface on which you can move from outside to inside without crossing an edge. This shows that inside and outside are not universal concepts.In this movie Klein’s Bottle is constructed by gluing an rectangle along the edges. Then the bottle is cut up again to yield a Moebius-strip.This video was produced for a topology seminar at the Leibniz Universitaet Hannover.

If you canâ€™t see the video playing above here is the YouTube page:
“The Klein Bottle”

## Turning a Sphere “Outside In”

`If you canâ€™t see the video playing above here is theÂ Google VideoÂ page:`

``` ```

`"Outside In"`