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: Exact Locations
Geometry tiles are information and control.
Try these arrows to make changes. Experiment with these watchers' arrows to move the vines.
Open a Viewer for one of the vines and click on basic to open the catergory menu.
Select geometry to see the set of 17 tiles in that category. Try others. Click the exclamation points to try these two scripts. The geometry tiles will take time to explore and to learn how you want to use the controls they provide.