Spaces is a cool way to keep the computing experience uncluttered on your Mac. It allows you to assign specific applications or windows to function in a group while temporarily storing the rest off screen on another virtual desktop.Check it out here: http://www.youtube.com/watch?v=c7MHup6kXbU
To turn spaces on, simply click the spaces icon (pictured to the right) in your dock or applications folder or ask your building tech for help.