Tuesday, 29 April 2014

Euclidean constructions

the website sciencevsmagic.net is a great resource for attempting to construct some shapes using a few simple techniques: circle and line drawing

40 tasks are set with an indication of how many steps it should take

Sunday, 31 March 2013


an online graphical calculator
you tube introductions:

downloadable (for free) at Desmos

Saturday, 23 March 2013

hundred number grid

hundred number grid, 0 to 99 number grid and times tables grid
from G Pitchford

Sunday, 29 July 2012

compass and ruler constructions

not interactive, the MathOpenRef site has a variety of compass and ruler constructions that are demonstrated (videos)

these can be made full-screen

you can click an auto-repeat box so that the steps are shown repeatedly