This adds a nice familiar spin to a simple activity to help you compare and contrast just about anything. You can also use this in a themed approach to your learning units. Students will often view new topics that these can easily be applied to. Obviously, students are familiar with our nearest star (the sun), but do they know anything about any of the other stars? Any star that you can see on a typical evening, not a super clear evening per se, is all likelihood is much bigger and brighter than our own sun. Did you ever think that you can see millions of stars at night? Researchers actually spent a year trying to figure out just how many stars you can see at night. The actual number of stars you can see at night ranges between two and three thousand based on the visibility at the time.
We do teachers like using these diagrams so much. We often hear back from many teachers that they use this form of diagram as an alternative to cycle organizers and even timelines. If you use the triangles that hang off of the center circle, it is easy to see. The center circle can house your main theme or event and the triangles can act to branch off from there. You may want to give it a try and see how it works out for you. Let us know if you find any other uses for it, we are always curious.