Motion Path animations are movements that happen along a path. You can choose from several preset Motion Paths for simple animations — these include lines, curves, stars, and several other paths. These paths may indicate an animation, but for all other practical reasons, they are essentially just ordinary lines (shapes) that have curves, points, etc. You can edit these Motion Paths in the same way as you can edit any other lines in PowerPoint. If you are familiar with the drawing tools in PowerPoint, or if you use a graphic illustration program like Adobe Illustrator or CorelDRAW, you know that paths can be either open or closed. A circle is a good example of a closed path, whereas a curve is an open path.
Learn about the open and closed Motion paths in PowerPoint 2011 for Mac.

