A complete introduction to the mathematical theory of Origami based on the teachings of Freidrich Froebel (1782-1852) and a step-by-step guide to 33 colourful and fun paper folding projects which are in themselves 3-dimensional proofs of geometric principals: - Spiral - Star - Octagon - Pentagon - Hexagon - Heptagon - Pyramid - - 16-, 17-, 18- and 24- sided polygons - Super Tangram - Polyhedron - - Tetrahedron - Octahedron - Icosahedron - Dodecahedron - Creating these projects is a little like solving a puzzle. Learn a lot of interesting facts about angles when you construct a pinwheel, a crow's head and a plot of grass, for example, and discover how you can use an origami square to fashion as large a hexagon as possible. * Artistic! Bring geometry and art together when you fold these beautiful origami shapes. * Educational! While you're making these remarkable designs, you also learn about the mathematics behind the folds & have fun with geometry."
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The "how to" illustrations are absolutely terrible. Too much instruction is dependent upon coded arrows and great leaps from one illustration to another. It is not at all user friendly or intuitive. Some of the pictures of the final origami results help but quickly move beyond what might be able to be figured out. I challenge anyone to figure out how to interpret the instructions on page 19. If I could write the author somehow, I'd like to give him a critique and suggest a book rewrite for the common folk. Not everyone is a math genius who is going to understand the equations that substitute for instructions. I'm surprised to see that this book is labeled for "Juvenile Nonfiction". I'm an adult who is ready to chuck the book out the window!!!! I had seriously had hoped to learn how to do interesting origami that wasn't the cutsey animal versions - guess I'll have to reinvent the wheel myself. So disappointed in my purchase........
A monument to Froebel
Dividing segments into parts
More nonconstructible shapes
The Super Tangram
The cube and some variations
Dodecahedron from 54 modules