This worksheet belongs entirely to Agata:
[url]http://www.geogebratube.org/material/show/id/28027[/url]
I have changed only this:
The paths do not jump from order to order; they are continuous, in time.
This is the purpose of the Bezier Path tool [url]http://www.geogebratube.org/material/show/id/84229[/url].