If you have trouble seeing the video, it’s here on YouTube. For more information about the singers (and lyrics to this and other songs), check out the Klein Four webpage.
P.S.: You may also enjoy the Valentine’s Day Fail over at Abstruse Goose.
Head’s Up for e-Day
It’s beyond Kitten’s level and beyond my math club (what’s left of it), but for those of you who are interested, this Sunday is e Day. The only place I can remember seeing the announcement is on the blog 360:
[Do you have an e-Day post? I’d be glad add your link!]
If you’ve never heard of e before, then perhaps you are young enough (or young at heart? ;)) to enjoy celebrating his more famous cousin. Pi Day is coming next month. . .
Updates
Maria has a good introduction to e:
And Zac adds:
Pat chimes in with “something totally different”:
While Robert explains:
Have a Mathy Christmas
A mathematical Christmas? You bet! For instance, I just noticed that Raymond Smullyan’s The Lady or the Tiger is finally back in print. My family and my math club students have enjoyed many of the puzzles in this book over the years, and I can’t think of a better stocking stuffer for the mathophile in your family.
(I do hope that means the rest of Raymond Smullyan’s puzzle books will be coming back, too!)
In the holiday gift-giving spirit, I’ve started making a list. Check out the links below for more mathematical Christmas present ideas.
More Fun with Pi
Key Lime Pi
This may be my favoritest ever Pi Day T-shirt, designed by the admin over at 10-Minute Math. I admit it’s not very mathy, but I’ve always enjoyed word play, and I love key lime.
The design won a Reflection T-shirt Company contest and is now available to pre-order for only $8.99 (plus shipping). [Company seems to have gone out of business? Can’t find their website…]
Unfortunately, it won’t be available in time for this Friday’s class.
Happy Square Root Day!
[Photo by arsheffield.]
Check it out:
- Celebrating Square Root Day
- Have a rootin’ tootin’ Square Root Day
- Prime, Composite, and Square Numbers activity
- Free, printable Square Roots Worksheets
- About the Pythagorean Theorem
- Pythagorean Puzzle — a lesson plan prototype
- 81 proofs of the Pythagorean Theorem
And coming soon: Pi Day.
Edited to add: Jonathan‘s class enjoyed extending the concept to include other products. Using the m/d/yy format (not the 4-digit year), how many times in your life has it been true that 
The Olympics: Math Puzzles and a Game
[Photo by striatic.]
Maybe it’s because school is out for the summer, but there don’t seem to be all that many Olympics-related math resources on the Web. I did find one cool game, however, and a nice stack of word problems. I hope you enjoy them!
Update: Be sure to see my blog post Olympic Logic for more links and puzzles!
April Fool’s Day: Fun with Math Fallacies
Photo by RBerteig. Take a break from “serious” math and have a little fun today with some classics of recreational mathematics. Do you have a favorite math or logic fallacy? Please share it in the Comments below. Continue reading April Fool’s Day: Fun with Math Fallacies
Happy Pi Day II
[Feature photo above by pauladamsmith.]
Now there is an ancient Greek letter,
And I think no other is better.
It isn’t too tall,
It might look very small,
But its digits, they go on forever.— Scott
Mrs. Mitchell’s Virtual School
Time to Celebrate
Are your students doing anything special for 
If you need ideas, here are some great
Planning Ahead: St. Patrick’s Day
Photo by Brittany G.
I found this cute lesson on Meeyauw’s blog:
And that sent me searching for more St. Patrick’s Day math:
Denise Gaskins' Let's Play Math 