The results are prettier and more sturdy. I recommend gluing the tabs in place with glue sticks rather than taping with scotch tape. Folding the paper into shape should be relatively straightforward - just make sure the imagery is on the outside and the tabs are on the inside. As usual, I recommend printing the designs onto card stock, and scoring the fold lines with a dull edge of some kind before cutting out the shapes to help make crisp folds. In all of the downloads presented here, the cut lines are thick and black, and the fold lines are thin and gray. For most of the following downloads, I have created both dodecahedral and icosahedral versions. This is one of those issues where I expect different people will have different preferences. The dodecahedron is the most bothersome to make, but it gives broad maps to study, and the poles are flat, which I like visually, and it also allows you to rest the globe in a straight up-and-down position. It’s too easy to focus on the shape rather than the map. But the poles are pointy, and I find all those faces and edges to be a little distracting to the eye. The icosahedron is fairly easy to make, and it resembles a sphere better than the others. My favorite shape for a polyhedral globe is a toss-up between the dodecahedron and the icosahedron. I found that the cube is actually not quite as goofy as I thought it would be - it gives you broad uninterrupted flat maps to study, and still keeps all the parts of the world in relatively good relative arrangement. The cube and the octahedron don’t resemble a sphere very well, but I thought I’d try making globes out of them all just for fun and for comparison. It's not too hard to create a design on paper to cut out and fold into a polyhedron, and with a little fancy math and a good source image, it's possible to draw maps on these polygonal faces, so that they make a globe when you fold them into shape.įour of the simplest polyhedra are the cube, the octahedron, the dodecahedron, and the icosahedron. In other words, we could model a sphere as a polyhedron. Another strategy would be to cut and fold a piece of paper into a shape that resembles a sphere, but is made up of lots of small flat surfaces instead of one big curved surface. Some time back, I worked out a way to make paper hemispheres, as you can see in my paper celestial spheres, but these have their pros and cons. The “celestial sphere” of stars, the globes of the earth and moon, maps of the earth at various times and in various conditions - it could be such a fun and useful activity to be able to work with paper models of all these things. I’ve wanted for a long time to create ways to make spheres out of paper. There are also templates for blank polyhedra. Printable paper polyhedra, for kids to cut and fold into globes of the Earth, the Moon, and Mars.
0 Comments
Leave a Reply. |
AuthorWrite something about yourself. No need to be fancy, just an overview. ArchivesCategories |