Tag Archives: resources

Michael Albert's Pi collage

Happy Pi Day (3.14, March 14)

We’ve been celebrating Pi (π) Day for half a decade or so now, but some of you may be new to the idea.  At the very least, it is an excuse to eat pie, and on the other end of the spectrum it is  a great day to celebrate math and the beauty of nature in numbers.

For those looking to eat pie, why not try to bake your own?  It could be sweet or savory.  Wikipedia has a list of pies to get you started, and AllRecipes has a lot of recipes on making pies available.  Perhaps you want to aim for a Steak & Kidney pie and combine two pseudo-holidays into one?

If you’re musical, there are many pi songs and raps out there you can try to learn.  My favourite is Dr. Arthur Benjamin‘s version of “American Pi”, captured here during a presentation he did at The Archimedeans (Cambridge University Mathematical Society).  We were lucky enough to participate in Dr. Benjamin’s show last year (thanks Ontario Science Centre) and the kids still sing his song (and we have a signed copy of his pi to 60 digits that he wrote out).   We will probably also watch at least one of his lectures from his Great Courses where he focuses on pi too.

There are many crafts and activities to do for those with kids.  Drawing and cutting out and measure circles with paper and string is all it takes to get started.   Don’t be shy about working in some physical activity too — maybe do a 3.14km hike?

A new discovery for me this year is the Pi Search Page which instantaneously finds a series of digits in the first 200 million digits of pi.  My 8 digit birthday occurs three times in those first 200 digits, while my wife’s only occurs once.  Try it out with any other ‘special’ numbers to you and see what you find.  Irrational.

In your pi studies, don’t forget what many mathies consider the epitome of numbers, Euler's Identity (e^π*i = -1) aka Euler’s Identity.

Numberphile has a great playlist for all their pi related videos (1h25m worth of content).  Last year the kids enjoyed watching Calculating Pi with Real Pies.  And let’s not forget ViHart’s pi playlist either.

And for the whimsical here is FlippyCat’s contribution to pi day in dominoes.

Please share how you ended up celebrating this special day, and get ready for next year when in 2015 3/14/15 will be the Longest Pi Day of our lives when it goes to 10 digits at 9:26:53am/pm.

Here are a few additional links to drive your research and insatiable curiosity.

snowflake books

Learning about Snowflakes

A couple of years ago we got Kenneth G. Libbrecht‘s Field Guide to Snowflakes book out of the library and I was fascinated.  After a few failed attempts at capturing our own flakes and getting them under a microscope we moved on from the topic for that winter.

Last winter we augmented our usual kirigami snowflake cutting by doing up a large 3-d snowflake craft to help decorate for the holidays.Large Snowflake Craft

snowflake necklaceThis winter we’ve been participating in a homeschooler group that North York Central Library has been hosting (Wednesday afternoons 1:30-3pm for those who want to stop by — thanks Janet & Sharon) and for our first two weeks we picked Snow and Winter as our theme.   A highlight for me was when I made a giant kirigami flake out of some flipboard paper and my daughter wore it as a necklace, and then later as a skirt.  It reminded me of this ballerina snowflake craft (note: even though they said the craft was only for Moms, I looked past their discrimination) I had come across (which we’ve done too).

sample snow crystalsIf you haven’t seen any of Ken’s books, or his informative website over at SnowCrystals.com, I suggest you look into them, even if you just hit up his kids activity page.  I made a tumblr post back in Dec that included a bunch of animated gifs that their lab made showing the crystals forming too.  I’ll include below a list of some other books and resources that can further your journey on learning about snowflakes and the fun to be had with them.

A chart of commonly agreed upon types of snow crystals

A chart of commonly agreed upon types of snow crystals

teach me how to breastfeed

Teach Me How To Breastfeed Rap Video

Tanefer Lumukanda is a hospital-based Lactation Consultant who wanted to explore new ways in educating and encouraging new moms all over on how to breastfeed.  She came up with a Rap Video: Teach Me How to Breastfeed (also on Youtube).

She writes about the experience at the MomsRising blog.

For more information on Breastfeeding see Jack Newman’s resources and the Government of Canada’s top reasons to breastfeed, or contact your local La Leche League.

table power of 10

Scale of the Universe and Powers of 10 resources

The concept of the scale of the universe has come up multiple times with my kids, and our friends, so I thought I’d put together a few links and resources we’ve used.

There is the ‘classic’ video (film-strip style) from the Eames Office, Powers of Ten and now with its accompanying website.

There is the superb flash animation: Scale of the Universe 2 by Cary Huang and Michael Huang (the (at the time) 14-year-old htwins).  [Hmmm… embedding it doesn’t work, sorry]

There is The Known Universe by American Museum of Natural History, which you can interact with via their Digital Universe 3D Atlas software (powered by Partiview) and presented by one of the makers at TED (Carter Emmart).

If you want to just think about really big numbers too, check out Numberphile‘s video of Googols and Googolplexs.