Inspirograph by Nathan Friend
As a child my Spirograph was definitely a favourite toy so I was delighted to find this digital version, Inspirograph by Nathan Friend. Try altering the gears so that the fixed and rotating gear are the same size, or make one size a factor of the other, make the two sizes have a common factor, or not! Investigate. You can change the colours too and create a work of Art!
The Nrich problem ‘Making Maths: Planet Paths‘ challenges students to draw some planet paths using a Spirograph. In case there is no Spirograph to hand they give instructions for making a simple one.
Spirograph – Desmos
Alternatively try an online version. Try Spirograph on the Desmos Graphing calculator.
From mathplayground.com comes this very clear and easy to use applet (the moving circle is outside the fixed circle).
Spirograph – Autograph Activity by Owen Elton
Owen Elton has written an excellent Spirograph Autograph activity (see Simon’s comment below) and also available on the Autograph player a very impressive 3D Spirograph!
For GeoGebra fans there are various applets available, including this which allows colour changes.
Reblogged this on Mathematics – Games and commented:
Play with the wonderful Spirograph!
OMG!! I was thinking about this not long ago and I could not remember the name of the game. It was one of my favorite game as a child ^_^
You and me both ioanaiuliana!