Assorted christmaths

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.

Fröbel stars

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.

Similar posts

Design your own flexagon
Electromagnetic Field talk
Christmas (2019) is over
Christmas card 2019


Comments in green were written by me. Comments in blue were not written by me.
 Add a Comment 

I will only use your email address to reply to your comment (if a reply is needed).

Allowed HTML tags: <br> <a> <small> <b> <i> <s> <sup> <sub> <u> <spoiler> <ul> <ol> <li>
To prove you are not a spam bot, please type "raenil" backwards in the box below (case sensitive):


Show me a random blog post

Feb 2020

PhD thesis, chapter ∞
PhD thesis, chapter 5
PhD thesis, chapter 4
PhD thesis, chapter 3
Inverting a matrix
PhD thesis, chapter 2

Jan 2020

PhD thesis, chapter 1
Gaussian elimination
Matrix multiplication
Christmas (2019) is over
▼ show ▼
▼ show ▼
▼ show ▼
▼ show ▼
▼ show ▼
▼ show ▼
▼ show ▼
▼ show ▼


determinants radio 4 advent calendar braiding sound gerry anderson manchester estimation chalkdust magazine probability approximation reddit boundary element methods pizza cutting dataset tmip bempp matrix of minors cross stitch rhombicuboctahedron craft final fantasy martin gardner ucl sorting realhats sobolev spaces light royal institution electromagnetic field dragon curves folding tube maps pythagoras platonic solids fractals golden ratio chebyshev nine men's morris palindromes statistics trigonometry signorini conditions video games bubble bobble tennis world cup graph theory reuleaux polygons manchester science festival preconditioning speed ternary captain scarlet phd misleading statistics chess puzzles logic weather station football gaussian elimination rugby numerical analysis christmas a gamut of games hats data visualisation people maths geometry books christmas card finite element method countdown propositional calculus arithmetic royal baby programming weak imposition cambridge wave scattering polynomials asteroids mathsteroids frobel national lottery golden spiral triangles hannah fry bodmas draughts plastic ratio machine learning raspberry pi accuracy curvature wool games big internet math-off simultaneous equations hexapawn harriss spiral menace london underground latex matrices noughts and crosses news python coins stickers pac-man php matrix multiplication dates european cup london matrix of cofactors mathsjam twitter oeis sport game of life computational complexity data javascript go map projections binary the aperiodical game show probability talking maths in public flexagons inline code error bars folding paper mathslogicbot matt parker inverse matrices interpolation


Show me a random blog post
▼ show ▼
© Matthew Scroggs 2012–2020