This is probably the best explanation for changing constellations I have ever seen. I helps students understand global positioning better and hopefully would spark student interest in space and the stars. Well organized and very cool. You will need a printer, but if you and your student are into it, you could probably put this together without the template which would take longer, but could open up the opportunity to get more creative with it by using things like black construction paper, glitter or poke holes in the paper where the stars go so you can see light shine through.