Using boxes, circles, ovals, rectangles, and other shapes, not to mention lines for connecting, students can show information according to its level (main ideas, subtopics, details or elaboration, and so on). They can show how two ideas compare to one another (as in a Venn Diagram) or Comparison-Contrast Chart . They can trace the order or sequence or stages of a process. They can show how characters in a story, or officeholders in a government, work with and relate to one another. In economics, that time-honored Circular Flow Diagram is an example of a graphic organizer.