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Demonstrates the properties of geometrical structures by showing how to buid three-dimensional shapes using easily accessible materials.
This book provides teachers of all levels with a great deal of valuable material to help them introduce discrete mathematics into their classrooms.
Polyhedra models make the world of geometry come alive for students as they learn about symmetry; discover the relationships between vertices, edges, and faces; and increase their spatial reasoning skills.
Explore the reaches of your imagination by combining art, craft, and mathematics to create the age-old geometric form of the polyhedra. More than 50 projects use just one center point to create shapes that are folded symmetrically and build upon each other. With easy-to-follow, step-by-step instructions, you can construct models from regular polygons, including equilateral triangles, squares, pentagons, hexagons, octagons, and decagons. These engaging projects require active, mental participation and can aid in reshaping familiar thought patterns as well as keeping your focus on the present moment as a form of relaxation. Also included is a wealth of detail on the subject of geometry. Once a requirement for entry into the philosopher Plato's Academy, now geometry can be enjoyed by everyone with an eye for fun. The book includes a chapter of tips to create your own designs.
Well-illustrated, practical approach to creating star-faced spherical forms that can serve as basic structures for geodesic domes. Complete instructions for making models from circular bands of paper with just a ruler and compass. 1979 edition.
This book unravels the mystery of Geometry in Origami with a unique approach: 64 Polyhedra designs, each made from a single square sheet of paper, no cuts, no glue; each polyhedron the largest possible from the starting size of square and each having an ingenious locking mechanism to hold its shape. The author covers the five Platonic solids (cube, tetrahedron, octahedron, icosahedron and dodecahedron). There are ample variations with different color patterns and sunken sides. Dipyramids and Dimpled Dipyramids, unexplored before this in Origami, are also covered. There are a total of 64 models in the book. All the designs have an interesting look and a pleasing folding sequence and are based on unique mathematical equations.
Step-by-step instructions, diagrams for creating 35 different polyhedra from origami units — from simple modular cubes to a 14-sided cuboctahedron!
