Pi-Dye Math T-Shirts Pi-Dye Math T-Shirts
Pi Quote
The Pi-Dye T-Shirt Shop
Pi-Dye T-shirts Home Pi and Math T-Shirts Pi and Math Shirts Celebrate Pi Day
The Pi-Dye T-Shirt Shop Pi Digits
Pi-Dye T-Shirt Categories
2005 winner

Pi Is Constant

5pi ($15.70)
Congratulations, Ben! (Your purchase donates $5 to his school!)
our partners
Hoagies' Gifted Education Page
A Free Online Inter- active Math Tutorial
Pi Day for Teachers and Number Lovers
The Official Pi Day website
© Copyright 2006, The Pi-Dye T-Shirt Shop, All Rights Reserved

Hap-π Pi Day to one and all!

math t-shirts recommender

I am shopping for a .   Show me items prices between and   

featured math t-shirts

Super Pi
Super Pi
5pi ($15.70)
It's a bird...it's a plane...no, it's pi! And just like Superman, the world's most important mathematical constant comes to the rescue, keeping the world in a circular orbit, and making sure that frisbees don't have gastly corners to poke out your eyes. This shirt is 100% pre-shrunk cotton and comes in Superman blue.
Approximation Is For Wimps
Approximation Is For Wimps
5pi ($15.70)
Whether you classify yourself as a mathematical wimp or warrior, this prophetic t-shirt is for you! Evangelize the importance of using more digits of pi than is astronomically necessary and the world will know you.

Great gift for a math geek, math nerd, math dweeb, among many other species of mathematicians of all sizes. All shirts are made of 100% pre-shrunk cotton, and range in sizes from Small to 4XL.

<b>Pi Cookie Cutter</b>  <i>New!</i>
Pi Cookie Cutter New!
4pi ($12.56)
Pizza Pi, Apple Pi, Chicken Pot Pi...now it's easy to make all these treats with our newest gift, the pi cookie cutter! Pi pancakes, pi cookies, pi brownies, or just use it for your shrine of math nerdiness. Great for school fundraisers or just a fun Pi Day activity. Made of long-lasting, beautiful cooper, and at 3-3/4" x 3-1/2" it is easy to use and easy to make high quality cookies or whatever else comes to your math-genius mind.
Pi Day Activity Book
Pi Day Activity Book
1pi ($3.14)
A 28-page book packed with plenty of pi puns, games, lessons, facts, figures, biographies, articles, and more! An excellent resource for your classroom for Pi Day or any day that you are looking to inject something interesting and unique into your curriculum.
Pi Day CD
Pi Day CD
2pi ($6.28)
Rock out with pi any day of the week with this CD of pi songs! Originally recorded by students at Skyline High School in Utah, every purchase sends $2 back to their school!
The tracks on this CD are:
  1. Wishing Pi Were Here Again
  2. Never Knowing Pi
  3. Bye, Bye, American Pi
  4. Kum-Pi-Ya
  5. On Top of an Integral
  6. Pi Chant
  7. Pi In the Sky
  8. Gonna Find the Radius
  9. Sick of Pi
  10. Pi Goes Forever
  11. Once Upon a Dream
  12. Wonderful, Wonderful Pi
  13. Pi Is Amazing
  14. Hey, Pi
The World Without Pi
The World Without Pi
5pi ($15.70)
What a nightmare! On the other hand, wouldn't that make it the best roller coaster in the universe to cross the Atlantic Ocean? Perhaps the Ancients were right that if you went too far, you would fall off the edge of the world...
Easy as Pi
Easy as Pi
5pi ($15.70)
Where it all started...Have the original Pi-Dye Design in your home. For an extra $100, we will frame it and mount a beautiful plaque with the name and date of your choice, thus creating a timeless family heirloom. Or, you could just buy the shirt and wear it.
More! More! More Math T-Shirts!


math news!!!

Thursday, November 30, 2006

How to Calculate Pi by Throwing Frozen Hot Dogs

Over the next couple of days on wikihow.com, you will be able to read Pi-Dye's third featured article: How to Calculate Pi by Throwing Frozen Hot Dogs. The experiment is read and it's fun, so try it out!

Last year, at about this time, we wrote an article on wikihow.com called How to Find a Gift for a Self-Proclaimed Nerd or Geek to give advice to the clueless, the concerned, and the curious about what makes nerds and geeks go gaga around Christmas time. It was selected by the folks at wikihow.com as a featured article, and it was a hit! At this point, after being online for a year, it has received 45, 557 reads. We even received a little bit of fan mail from it, including this note from a thankful mother:

thank-you! I have a son who is notoriously difficult to buy for. He doesn't like to let on, but he is a geek. I've now purchased a binary clock, a marshmallow shooter and some science T-shirts for him. Very helpful wikiHow!!!

Aside from being a whole lot of fun to write the article and see people's reactions, it was also nice to see people actually use the information and benefit from it.

So, intrigued, we wrote another article in March called How to Celebrate Pi Day that included step-by-step instructions for getting the full Pi Day experience. Again, it was selected by the peeps at wikihow as a featured article, and it did better than the first! As of right now, it has 65,521 reads. This one obviously wasn't as practical as the first, so we didn't receive mail regarding how much it helped them--we just heard from geeks like ourselves how cool it was that someone has written an article like this.

Well, we took a break for a little bit, mostly because we didn't have anything to write about; however, at this point, we were addicted, and we wanted to write more articles about pi to hopefully get more people interested in math even if just for a minute. So about one month ago, we wrote the article mentioned at the top, How to Calculate Pi by Throwing Frozen Hot Dogs and hoped for the best. The intent was to create a humorous rendition of the Buffon Needle Problem. Well, it worked. It was selected as a featured article a couple of days ago, and we are currently at 129,241 reads and counting! Aside from all the nice reads, we've received mail like this that helps us know that we accomplished our goal:

My 7th grader was amazed and my dogs thank you too, as they got to eat the hot dogs (of course they had to be in another room for the actual experiment or we couldn't have concluded it)!

And another:

this is awesome, perfect for my teenager--thanks! :)

And so on.

In my perspective, it is always a good day in math when 129,000 people stop their daily grind to think about math. It makes the world just that much more open to innovation, creativity, and problem-solving for at least a minute, but hopefully long enough to make a difference.

Friday, October 13, 2006

The Perfect Pi Day Site: teachpi.org

The other day while browsing about my obsession, I found a terrific website containing a wealth of ideas and information about celebrating Pi Day at school: TeachPi.org. Yes, it's way before Pi Day 2007, but I liked it so much I just have to tell you about it.

The by-line across the top could little be truer: The one-stop Pi Day shop for teachers and number lovers. It has pi music and pi music lyrics, short stories about the people and origin of pi, and about 50 or so Pi Day activities that create a nearly inexhaustible reservoir of ideas for any teacher that wants to celebrate pi day and make math and pi that much more fun.

When you visit, you will want to download their pi rap; it is original and hilarious! My favorite part is this (it goes to the rhythm of 'Loes Yourself' by Eminem):

...it shakes me up, man, it makes me sentimental
that a number so essential is also transcendental.
Kinda' between bein' in fashion and bein' irrational.
Passion flashin' through my brain whenever I explain it...

The lyrics are so ingenious that I'm thinking of making them my ringtone. :)

The best part about the whole site, though, is that its brand new. Paradoxically, the site already seems very complete; however, there are still "Coming Soon!" signs here or there. This is wonderful because not only does it mean that each of us pi lovers has the opportunity to contribute to an up-and-coming site, but also that an already great website has the potential to get even better!

So visit teachpi.org for some great pi day ideas, and let's, through our support, truly make the sight the One-Stop Pi Day Shop.