Vocab
What is origami?
Art and technique of folding a single, flat sheet of paper into a 3D shape without glue or tape.
What is the number of faces, edges, and vertices of a cube?
face: 6, edges: 12, vertices: 8
You find out what went wrong, fix it, and try again
When you fold the paper up towards you, what is the fold called?
Valley Fold
What Japanese word means "to fold"
Ori
What is the point called where two or more lines cross each other?
Intersection
What are three examples of a polygon?
triangles, squares, rhombus, rectangle, hexagon, etc
What is one example of origami being used in real life?
-Folded Telescope
-Self-folding robot
-Heart Stent
-Bridges
What fold do you make when you fold the paper down away from you?
Mountain Fold
Name three 3-D shapes
sphere, square pyramid, triangular pyramid, rectangular prism, cube, etc
What does transported mean?
To move something
What is a polyhedron?
A 3D shape that is made of polygons that has no curves, gaps, or holes, and only straight lines
What is one type of bridge?
-truss
-beam
-arch
What is the line left on paper after folding?
Crease
What is happening when a structure is under compression?
They are being pushed or squeezed
What is the aorta?
The largest blood vessel in the body that carries blood away from your heart to the rest of your body
What is the Euler Characteristic of Polyhedra?
2
What shape is used on the Truss Bridge because it's the strongest bridge?
What base is made of a single valley fold in half to create a rectangle, like closing a book?
Book Base
Why doesn't the beam bridge span a long distance?
It will start sagging in the middle
Prototype
Two examples of origami folds that are used in engineering
-Accordian Fold
-Tube Fold
-Triangular Fold
According to Maekawa's Theorem: At a vertex, there will always be a difference of _______ betweem the number of valley folds and mountain fold
2
What are the number of faces, edges, and vertices in a hexagonal pyramid?
faces: 7
edges: 12
vertices: 7