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Nov 2017MENACE at Manchester Science Festival
Jun 2017Big Ben Strikes Again
Mar 2017The End of Coins of Constant Width
Dragon Curves II
Feb 2017The Importance of Estimation Error
Jan 2017Is MEDUSA the New BODMAS?
Here is a collection of Christmas relates mathematical activities.
I first encountered flexagons sometime around October 2012. Soon after, we used this template to make them at school with year 11 classes who had just taken GCSE papers as a fun but mathematical activity. The students loved them. This lead me to adapt the template for Christmas:
And here is an uncoloured version of the template on that site if you'd like to colour it yourself and a blank one if you'd like to make your own patterns:
The excitement of flexagons does not end there. There are templates around for six faced flexagons and while writing this piece, I found this page with templates for a great number of flexagons. In addition, there is a fantastic article by Martin Gardner and a two part video by Vi Hart.
I discovered the Fröbel star while searching for a picture to be the Wikipedia Maths Portal picture of the month for December 2013. I quickly found these very good instructions for making the star, although it proved very fiddly to make with paper I had cut myself. I bought some 5mm quilling paper which made their construction much easier. With a piece of thread through the middle, Fröbel starts make brilliant tree decorations.
Design Your Own Flexagon
Electromagnetic Field Talk
Dragon Curves II
Christmas (2016) is Over
Comments in green were written by me. Comments in blue were not written by me.