[size=200][b]Draw a dynamic point, "P", on a polyline, "p"[/b][/size][br][br][color=#000000]A polyline is a set of segments joined by the ends. GeoGebra creates the polyline selecting, successively, at least three points, which will be the vertices of the polyline, and clicking on the first point again in order to finish the polyline.[/color][br][br][color=#9900ff]1st. Activate the "Point" tool [icon]/images/ggb/toolbar/mode_point.png[/icon], draw six points in the Graphics View and name them "A", "B", "C", "D", "E", "F".[/color][br][br][color=#9900ff]2nd. Activate the "Polyline" tool [icon]/images/ggb/toolbar/mode_polyline.png[/icon] and click on the points in the order shown (this GeoGebra activity only detects points "A", "B", "C", "D", "E", "F") and then click on point "A" to finish the Polyline.[/color][br][br][color=#9900ff]3rd. Name the polyline "p" (small letter).[/color][br][br][color=#9900ff]4th. Activate the "Point" tool [icon]/images/ggb/toolbar/mode_point.png[/icon] and click on the polyline. The traveller point will appear.[/color][br][br][color=#9900ff]5th. Name the point you have just created "P" (capital letter).[/color][br][br][color=#9900ff]6th. In the context menu of point P select "Animation on".[/color][br][br][color=#000000]The two curved arrows located in the upper right corner of the Graphics View allow you to reset the activity.[/color][br][color=#000000]If the activity is correct, you will get 10 points automatically.[/color]