mscroggs.co.uk
mscroggs.co.uk

subscribe

Blog

 2013-12-23 
Here is a collection of Christmas relates mathematical activities.

Flexagons

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.
                        
(Click on one of these icons to react to this blog post)

You might also enjoy...

Comments

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> <logo>
To prove you are not a spam bot, please type "pmuj" backwards in the box below (case sensitive):

Archive

Show me a random blog post
 2026 

May 2026

World Cup stickers 2026

Apr 2026

A new puzzle every day
Mixing Wordle with other games

Feb 2026

Christmas (2025) is over
 2025 

Dec 2025

Christmas card 2025

Nov 2025

Christmas (2025) is coming!

Sep 2025

The partridge puzzle

Aug 2025

TMiP 2025 puzzle hunt

Jun 2025

A nonogram alphabet

Mar 2025

How to write a crossnumber

Jan 2025

Christmas (2024) is over
Friendly squares
 2024 

Dec 2024

A regular expression Christmas puzzle
Christmas card 2024

Nov 2024

Christmas (2024) is coming!

Feb 2024

Zines, pt. 2

Jan 2024

Christmas (2023) is over
 2023 
▼ show ▼
 2022 
▼ show ▼
 2021 
▼ show ▼
 2020 
▼ show ▼
 2019 
▼ show ▼
 2018 
▼ show ▼
 2017 
▼ show ▼
 2016 
▼ show ▼
 2015 
▼ show ▼
 2014 
▼ show ▼
 2013 
▼ show ▼
 2012 
▼ show ▼

Tags

royal institution correlation european cup convergence fonts polynomials mathsjam edinburgh squares logo mean reuleaux polygons dataset newcastle sport probability data cross stitch regular expressions dates big internet math-off frobel countdown preconditioning determinants matt parker kings sorting fractals boundary element methods electromagnetic field stirling numbers javascript curvature phd chebyshev logic python signorini conditions triangles finite element method bodmas 24 hour maths football bempp crossnumbers wordle exponential growth geogebra computational complexity numbers alphabets data visualisation games youtube london noughts and crosses folding tube maps news rhombicuboctahedron binary geometry pythagoras pi weather station fence posts thirteen christmas card draughts london underground accuracy oeis captain scarlet nine men's morris ternary turtles game of life datasaurus dozen pac-man inverse matrices books partridge puzzle inline code rugby tmip errors bubble bobble misleading statistics runge's phenomenon manchester coventry christmas royal baby wool pizza cutting latex hexapawn php hats crosswords game show probability hannah fry menace manchester science festival matrix multiplication reddit programming pascal's triangle crochet golden ratio bots approximation realhats tennis world cup craft crossnumber matrices mathslogicbot arithmetic video games ucl wave scattering palindromes a gamut of games estimation propositional calculus go coins weak imposition gather town plastic ratio golden spiral error bars people maths the aperiodical light warwick hyperbolic surfaces gaussian elimination mathsteroids rust map projections graphs talking maths in public databet folding paper sobolev spaces finite group arrangement puzzles friendly squares matrix of minors harriss spiral radio 4 pokémon wordle cambridge puzzles platonic solids kenilworth pokémon trigonometry interpolation asteroids advent calendar nonograms recursion final fantasy raspberry pi sound bluesky braiding national lottery logs zines speed chess simultaneous equations statistics numerical analysis graph theory guest posts standard deviation flexagons live stream martin gardner matrix of cofactors stickers pi approximation day tetris dragon curves quadrilaterals anscombe's quartet chalkdust magazine gerry anderson machine learning dinosaurs

Archive

Show me a random blog post
▼ show ▼
© Matthew Scroggs 2012–2026