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About the projects
These craft projects are fun to make, but also teach some basics of
geometry. Learn about radial symmetry by making
Try to solve puzzles using the basic geometric shapes in a set of
tangrams. Take geometry to the third
dimension with Platonic solids, and have
fun finding hidden surfaces with flexagons!
In the coming weeks and months other projects featuring geometric fun
will be added!
The projects range in difficulty from VERY EASY to AVERAGE.
Browse down this page for descriptions and illustrations of the projects, then select a project and have
some crafting fun!
Tri-tetraflexagons - In this project, you'll make the
tri-tetraflexagon which is one of the simplest and easiest to make
flexagons. It looks like a simple paper square with a front and a
back, but hidden inside is another side (or face) that is revealed
by folding the square in half and flexing it.
Hexa-hexaflexagons - Learn how to make a really fun geometric toy—a six-sided,
six-faced flexagon called a hexa-hexaflexagon! It
looks like an ordinary, two-dimensional, paper hexagon with a front and a back, but hidden
inside are four more sides (or faces) that
become visible by flexing the paper.
Symmetry in Snowflakes - Learn how to make paper snowflakes. This project includes
patterns for several different snowflakes, including Aunt Annie's favorites. You will also learn about the symmetry found in every snowflake.
Tangram Puzzles - Learn to make the tangram puzzle game that originated in China during the 1800's.
It is a puzzle that requires imagination and creativity. The project includes patterns for making tangrams and several printable puzzle sheets with
shapes you are challenged to duplicate.
Geometric Solids - In this project make three
of the five Platonic solids—tetrahedron, octahedron, and icosahedron. These geometric models can be used
for things beyond learning about solid geometry. Decorate them and make a colorful mobile
or use them as gift boxes.
EASY to AVERAGE
Flexagons - Learn how to make a flexagon, a
most fascinating geometric toy! Flexagons are folded paper polygons that have the neat feature of changing
faces as they are flexed. With a quick fold, change a flexagon that is green and yellow to green and blue,
then to yellow and blue.
Platonic Solids - In this craft project learn a simple technique
based on circles for making all five Platonic solids—tetrahedron, octahedron, icosahedron, cube, and
dodecahedron. The solids can be also be decorated and used as giftboxes.