Below: Kids working with a computer prototype of a comic strip program.
Below: The programming tool has two windows, one window where programs are created (the program window) and one where programs are run (the play window).
Screenshot from the program window. The first frame is the precondition (the guard) and the second frame is the action (the body). This event makes the blue character be deleted when it meets the red charater.
Screenshot from the play window. This is where programs are run. Moving the red character near the blue characters makes them vanish.
