Pi Day

Not quite in time for Pi Day (Yesterday, we were busy eating pie with friends.) is a video of Physics Girl estimating pi with darts.  When I watched the first bit, I almost gave up on it.  It's only human to aim for the centre of a target.  But it's worth a watch to the end! 

The kids loved it, especially the part where they throw multiple darts with a blindfold on!

Infinity

An acquaintance recommended a site full of "math in daily life" videos.  Lately, math around here has become a little dull.  SpiderGirl is practising multiplication tables; BatBoy hasn't had anything new for awhile; so the inspiration was welcome.

"The Infinite Life of Pi" caught BatBoy's imagination.

He calls these his "infinite drawings."  He made one that looked just like a visual representation of Fibonacci's sequence too.  (It was a series of adjacent squares.)  From there, we went on to explore ways infinity shows up.  His drawings reminded me of fractals, so I found some videos to show him.

And of course, the Ted-Ed had a video on fractals too.

Finally, we looked at what happens when we allow long division to go into decimals instead writing a remainder or changing to a mixed fraction.