Digital Workshop

Geopaper is an experimental publication that allows for the construction of accurate regular and irregular polygons from triangles to icosagons.

It is great for an IWB and suitable for supporting a variety of geometry topics including exploring shape, perimeter, area, Pythagoras and trigonometry.


http://www.interaktiv.co.uk/izones/polygons/geopaper

Some example of geopaper in action:

An equilateral triangle with all lengths and angles shown.
http://www.interaktiv.co.uk/izones/polygons/1.png

A regular icosagon with just the lengths shown:
http://www.interaktiv.co.uk/izones/polygons/2.png

A Right angled triangle with two lengths shown
http://www.interaktiv.co.uk/izones/polygons/3.png

An irregular dodecagon with a mixture of lengths, angles and algebraic substitutes.
http://www.interaktiv.co.uk/izones/polygons/4.png

Mack

Very cool!

Cheers Roxie,

It's an interesting challenge. I know that Opus can draw shapes (V6) but I wanted the program to have access to individual edges & vertices of the shapes both for the calculation of lengths and internal angles and for when the program is develop into a full program designed for teaching more advanced concepts.

I think that a huge shout out to DW & Opus 6 should be made at this point as although the program was damn complicated in places - Opus 6 had all the functionality to make it work and work well.

Mack