Squeak Etoys is a "media authoring tool"-- software that you can download to your computer
and then use to create your own media. You can write out your project and share it with others.
Etoys runs on any Mac or Windows machine, as well as on the OLPC XO machine.
It is free.
Find out about Etoys.
Text of this guide (for searching): Script Tiles: Width and Length
These watchers show the length
and width of the letter G.
Use the green arrows to change
these dimensions. Draw a shape; click keep.
Right click on the shape to open its halo and then open its Viewer.
Click on basic to open a category
menu and choose geometry. Or just,
Click the green clock to try this script.
Change the numbers. Click and hold down on 'width' in the Scriptor and choose increase by from the menu. Try decrease too.
Try multiply too but, think and be realistic about what your computer can do. Click the exclamation point to run the script one time when you first experiment with multiply by. Experiment with this script too.