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): Click an exclamation point to run a script once. Script Tile: Hide and Show Tiles. Click on basic to open the category menu then click on miscellaneous.
Click on the tile sketch hide and
drop the tile on the world.
Try the new script. Make a sketch, open its Halo and then open its Viewer. For an interesting use of the hide and show tiles, make a script like this one for your sketch.
Click on Test Yes No in the Viewer to make a Scriptor with a test in it.
Put the tile sketch is under mouse beside the word Test in the Scriptor. Add the tiles hide and show to your Scriptor.
Click the green clock to try this script.