Happy Pi Day
Tomorrow we’ll be celebrating Pi Day in class and at lunch, but Pi Day is actually on Sunday, March 14th. It’s celebrated on March 14th because the first three digits of Pi are 3.14, which when written as a date would be 3/14. If you want to get even more precise, you can celebrate “Pi Minute” on 3/14 at 1:59 or “Pi Second” at 1:59:23. I suggest you do it at 1:59 p.m. and not 1:59 a.m. Your parents might get a bit angry if you wake them up shouting “Happy Pi Minute” and “Happy Pi Second” in the middle of the night!
In some parts of the world, Pi Day is celebrated on July 22nd. Can you figure out why? And what does that have to do with Archimedes, the guy who I wrote about a couple of weeks ago? Post a comment with the correct answers before Pi Minute Singapore time and you’ll earn two bonus points for homework!
Here’s a list of some things you can do to celebrate Pi with family on Sunday.
1. Go for a Pi hike (3.14 km).
2. Bake your favorite pi(e) or pi cookies. You can decorate it with the pi smbol.
3. Write a Pi-ku: a poem with 3 lines. First line has 3 words. Second line has 1 word and the third line 4 words.
4. Eat pi-neapple.
5. Go out for pi-zza.
Mr. Haas' Math Blog 
Hey Mr. Haas!
I think that all the stuff on pi is really cool and interesting! Awesome! Happy pi day and pi rules!!!!!!!!!!!!!!!!!!!!!!!!! 🙂
Hi Mr. Haas,
I think that July 22 is pie day because july is the seventh month and 22 and 22/7 is the fraction over pie and is the closest estimate.
Thank You,
Eshwar
I think that July 22 (22/7) is celebrated as Pi day because the Greeks first thought that pi was the fraction 22 over 7, which comes to 3 and 1/7, that’s a close fraction. 3.141592653589793238462643
I think July 22nd is pi day because 22/7 is what the Ancient Greeks though pi was. Like July 22nd is 07/22. The opposite of that is 22/7, which is close to pi. Or maybe July 22nd is when people discovered pi.
Mr. Haas, I think in some countries, Pi Day is celebrated on 22 July, because I think the closest is Pi=22/7.
Hi Mr. Haas, sometimes Pi Day is celebrated on July 22 because the closest fraction to Pi is 22/7. In places where they put the date first, it makes sense that it would be July 22nd, and not the 22nd month (which doesn’t exist) on the 7th day. This has to do with Archimedes because he created a method to approximate the value of pi. For a bit more about Archimedes and pi, I found a website that has some pretty good information: http://itech.fgcu.edu/faculty/clindsey/mhf4404/archimedes/archimedes.html
Happy Pi Day everyone! (In advance… tomorrow is Pi Day 😉 )!
3. 1415926535 8979323849 2943383279 5028841971 6939937510 5820974944 5923078162
Also, there is such thing as a “Piem” which is a “Poem” about “Pi”! Get it? A Piem! A cool one is:
Pie
I wish I could determine pi
Eureka, cried the great inventor
Christmas pudding, Christmas pie
Is the problem’s very center.
Sir, I send a rhyme excelling,
In sacred truth and rigid spelling,
Numerical sprites elucidate,
For me the lexicon’s dull weight,
If nature gain, not you complain
Tho’ Dr Johnson fulminate.
You can find more in different languages on wikipedia: http://en.wikipedia.org/wiki/Piphilology
I think that is celebrated on that day because they think that 22/7 is the closest estimate to pi. Archimedes discovered how to find the area of a circle using other polygons.
Have a great pi day!