Using scenes is a lot like scenes in a movie or a play. Each one contains, covers or presents a certain group of information or presents something on it's own. Adding scenes together creates a story or presentation of information. By creating scenes, you can organize your presentations by subject for example (ie: about, contact, portfolio).
Now that you know what they are and what they do, lets make some. You can do this 2 ways. One is by going up to "insert" and clicking "scene". The other is by opening up your scene inspector under "windows" and clicking "add". Lets add 3 additional scenes to the original and name them About Us, Products, & Contact Us. You can rename your scenes anytime by double clicking the scene name. Let's rename the original scene "Home". You should have 4 scenes now.
In the lower right corner of the stage create a different graphic or write the name of the scene on each scene to give you a visual of the scene change when we test later.