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
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 2009, The Pi-Dye T-Shirt Shop, All Rights Reserved

Pi Day Arrival Deadlines: For orders to the United States, please order by Monday, March 10th.

Will You Survive Pi Day?

Pi Day is nearly here...You'll want to get our Pi Day Survival Kit...just to be on the safe side.

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.

The Super Pi is now available in women's sizes! Click here to get it in a women's size.
<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.
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.

Pi Day Activity Book
Pi Day Activity Book
2pi ($6.28)
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
3pi ($9.42)
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
<b>Backwards</b> Unit Circle Clock
Backwards Unit Circle Clock
5pi ($15.70)
Our clocks are finally back in stock! Wait?! What time did you say it was? pi/2 past 2pi? Oh, okay, I have pi/6 more minutes until my class.

Have this power-nerd conversation while confusing/impressing your friends/students/fellow teachers and nerds with this clock that goes backwards!

But, why does it go backwards?That's a great question. It goes backwards because it has the image of the unit circle on the clock. When you read the unit circle, you read it counter-clockwise. Even better, the unit circle starts at the x-axis, so this clock mimics that by starting in the 3 o'clock position!

This is great for the classroom, too, if you are a) teaching trig or b) just want to keep your kids from looking at the clock to see when class will be over!
What's In a Name?
What's In a Name?
10pi ($31.40)
You have never seen anything like this!

Ever wondered where your name came from or what it means? It turns out that every name in the universe was originally divined from the mathematical phrase "myname"! Our research is discovering the derivation of new names all the time. For your etymological pleasure, we have designed these t-shirts containing the mathematical origin of your very own name!

On the front of the t-shirt, is your name in its pure mathematical form.

On the back is your unique mathematical proof from the mathematical phrase myname to your very own name!

This is the most unique gift ever by leaps and bounds because we custom-design it to the exact letters of your name. The proof is real; real math equations, real physics equations, really cool and unique gift for:

  • anyone who likes math, science, or computers
  • anyone who you would classify as a "geek", "nerd", "smarty-pants", or "know-it-all"
  • anyone with a unique name for whom you can never find customized things, or
  • anyone who simply likes t-shirts

    Enter your name in the field below and we will send you a t-shirt with the finished name on the front (see image) and the path that we took to get from myname to your name on the back.

    Because this product is so new, if you order today, you could be the first person to have the "hello, myname= _______" t-shirt for that name!

    How unique is that?!

    (Below are examples of a front and back--use your imagination for your own name!)
  • More! More! More Math T-Shirts!


    math news!!!

    Saturday, January 17, 2009

    Will you Survive Pi Day?

    In fewer than 20*pi days, nerds across the world will be feasting on pomaceous pastries, calculating areas and arc lengths born out of whatever knife, pizza-cutter, Johnson-Rose Stainless Steel 8-Cut Pie Cutter, or spoon that was at their disposal at the time.

    In fewer than 20*pi days, geeks of all varieties will speak in mathematical tongues the language that only those who have spent way too many hours looking at a list of apparently random digits on a computer screen will understand.

    Fewer than 20*pi days remain until we all join hands in the shape inseparably related by its circumference and diameter to our favorite irrational constant.

    Are you ready? Will you be one that survives pi day?

    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.


     

    What Are You Going to Do For Pi Day?

    Let us help you out with some free ideas in our latest email series!

    Email:*
    First Name:
    Last Name:

    We value our customer's privacy. We will never distribute your email address in any way.