random ACTS
OCTAhedron
Octahedron are 8-sided shapes. They are beautiful for the simplicity of their shapes, made up of 8 triangles, with a squre that bisects the middle. Architecture is related to math all the time, so we thought we would just consider the idea of the number eight.
Circles, squares, triangles, rectangles...these are all flat shapes.
Cubes, spheres, polyhedron...these are all 3-dimensional shapes.
An OCTAhedron is a 3 dimensional shape with EIGHT (8) sides.
To build an octahedron, you might first make a square. then make a pyramid on the top and a pyramid on the bottom. We have used pipecleaners and straws to make them. Try it out.
Buckminster Fuller had a lot of great ideas about building with geomteric shapes. He was an incredible thinker. Here is a link to a complicated essay about various polyhedra and Bucky Fuller.
If you can explain it in easy terms, please send that explanation to me. Otherwise, if you create an octahedron out of pipecleaners and straws, take a photo and send it to archKID@solidprint.com.
This site by Richard Phillips has some really
great information about the number 8.
In fact, there is great information about
numbers 1 through 31.
Eight is a Fibonacci number
1, 2, 3, 5, 8, 13 . . .
Can you see the pattern in Fibonacci numbers?
Here is a really great animation to
define Fibonacci Numbers. (It may offend you
with a couple of naughty words, but the
visual explanation is excellent.