This model creates different, kaleidoscopic patterns using simple geometric shapes. It is called BOTTOM-UP because the user creates the patterns by manipulating the shapes himself.

For detailed instructions on using the program, take a look at the info window from the Geometron--Bottom-Up model.

Download the StarLogoT source code for the Geometron--Bottom-Up model:
Download geo-b-u

To run this file you need StarLogoT2002 for the Macintosh.
(download StarLogoT)

Click on one of the pictures to see a quicktime movie of the model:
This is a quicktime movie of a geometric pattern created by circles and squares.