Although there are many different graphic organizers, they can be grouped into three main types. Graphic organizers may be grouped or classified as representing sequential information, a single main concept, or multiple concepts. Different types within each classification can be used to represent simple or more complex information. Figure 1 is a matrix graphic organizer depicting classes and types of graphic organizers. Sequential Graphic Organizers Sequential graphic organizers represent serial information.
Timelines represent information that proceeds in temporal order.
Flowcharts represent information that is also serial, but there are discrete steps, or steps that must be completed in order. When all the steps in a flowchart are dependent on the previous one, and when the last step is connected to the first step, then a cyclical organizer is best. A hierarchy is also like a flowchart, except each subordinate step may have more than one branch. A second class of graphic organizers effectively illustrates materials having a single main concept. Information related to the main concept is included on either side of, or around the idea.