目次

Introduction Activity 1 Folding Equilateral Triangles in a Square Activity 2 Origami Trigonometry Activity 3 Dividing a Length into Equal Nths: Fujimoto Approximation Activity 4 Dividing a Length into Equal Nths Exactly Activity 5 Origami Helix Activity 6 Folding a Parabola Activity 7 Can Origami Trisect an Angle? Activity 8 Solving Cubic Equations Activity 9 Lill’s Method Activity 10 Folding Strips into Knots Activity 11 Haga’s "Origamics" Activity 12 Modular Star Ring Activity 13 Folding a Butterfly Bomb Activity 14 Molly’s Hexahedron Activity 15 Business Card Modulars Activity 16 Five Intersecting Tetrahedra Activity 17 Making Origami Buckyballs Activity 18 Making Origami Tori Activity 19 Modular Menger Sponge Activity 20 Folding and Coloring a Crane Activity 21 Exploring Flat Vertex Folds Activity 22 Impossible Crease Patterns Activity 23 Folding a Square Twist Activity 24 Counting Flat Folds Activity 25 Self-Similar Wave Activity 26 Matrix Model of Flat Vertex Folds Activity 27 Matrix Model of 3D Vertex Folds Activity 28 Origami and Homomorphisms Activity 29 Rigid Folds 1: Gaussian Curvature Activity 30 Rigid Folds 2: Spherical Trigonometry Appendix: Which Activities Go with Which Courses Bibliography Index