mscroggs.co.uk
mscroggs.co.uk

subscribe

Blog

Assorted christmaths

 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 "t" then "h" then "e" then "o" then "r" then "e" then "m" 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

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

Archive

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