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 "vector" 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

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

Archive

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