You will find several Lesson Plans here that will give you an idea of what you will find in the Computer Center.
The Microsoft Paint Lesson Plan is a good one for beginners just getting used to moving around the computer. It's just like coloring, and we all love to color! By doing something that is fun it takes the pressure off a bit when things don't go perfectly.
They are of varying degrees of difficulty. For instance, the example here for Microsoft Word is the 9th Lesson Plan offered. The first few are simpler to help you get started if you are new at this.