Pi is math-speak for a circle's circumference divided by its diameter. This ratio roughly calculates to around 3.1415926535897932384626433832795028841971693993751058209749445923078. This, however, is a bit of an understatement in that pi has actually been calculated thus far with no discernible repetition and no end in sight. There are places online where you can find pi extending for millions of digits. Fortunately, pi is normally rounded down to 3.14 to make it easy for us to get a grasp on. In honor of this common and readily used mathematical anomaly, the dorks of the world have created Pi Day. As one might guess, Pi Day is on March 14th (get it ?!). I, for one, plan to kick off my rock around the clock at 1:59.

Appreciating pi (not the edible variety) style
Those who fear rows and rows of numbers, I recommend you to leave. Those who wonder what pi is so fascinating about, I recommend you to join me on this epic journey through pi. EDIT: After having lef...
Circumference of a Circle style
In this Instructable, we will dive into the exciting world of Circles. Specifically the Circumference of a Circle. Supplies: Pencil (needed for it's erase-ability) Paper Calculator (to check your an...
Volume of a Cylinder style
A cylinder is a three-dimensional shape circular in cross section. Cylinders are very common, from cans to tubes, to internal combustion engines. This instructable will show you how to calculate the v...
Volume of a Sphere style
A sphere is nothing but a three dimensional circle. If you can imagine a smooth ball, suspended in mid-air, perfectly round... then you get a sphere. All of you have seen spheres...They're everywhere...
Pi Cake style
Pi in cake form or cake in pi form. Either way, it's tasty.
Rutabaga Pi style
A delicious pie that you can have for dinner or dessert. Rutabagas are a seldom used vegetable that are quite tasty, and really good for you. You can find them in the grocery store, at a farm stand, o...
Surface Area of a Sphere style
There comes a time in a person's life when they realize something is missing...and oftentimes, they come to realize that it is because they do not know how to calculate the surface area of a sphere!Al...
Surface Area of a Cylinder style
Want to know how to figure out the area of a cylinder? Here's how! I prefer to learn hands-on, so I decided to make a cylinder instead of just writing equations. This may be a great way to teach your...
Bike hardware spirograph - bike-o-graph! style
Have you ever messed around with a spirograph set, and wished it was way bigger? Yeah, me too. With a few discarded bike parts and scrap pegboard, it can be.
Area of a Circle style
Math the king of the sciences , without math our lives couldn't be like we know them . Without math the school wouldn't have that thrill you like , you like math don't you . Yet, math is a dare that ...
fuzzy math style
Do you tend to avoid anything that involves math? Are you calclueless? Don't you hate how they call it "the calculus" like it's all high falutin and more important than the other math subjects? T...
Mom's Blueberry Crumb Pie style
When it comes to baking, my mother doesn't mess around. And one of the things she bakes best is blueberry pie. Unfortunately, she only bakes it once or twice a year because she refuses to make it when...
Seven Segment Display Tutorial style
How many TV shows and movies have some mysterious device counting down to zero those displays are 7 segment displays.With the 7 segment displays you can display any number or some alphabets that your ...
Cutting Precision Miters in Ten Minutes or Less style
Cutting miter joints can be an involved process that can take hours and practice to perfect.  With a simple set up on a table saw, you can cut all of your joints quickly, efficiently, and accurately w...