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Incredible Shrinking Shapes
Source Institutions
In this activity, learners get hands-on experience with ratios and scaling while making their own jewelry out of recycled plastic containers.
![](/sites/default/files/styles/square_100/public/resource_images/smile-000-000-003-557.png?itok=vQ1X7kdB)
Exploring a Complex Space-Filling Shape
Source Institutions
In this activity, learners build a paper stellated rhombic dodecahedron, a three-dimensional 12-pointed star.
![](/sites/default/files/styles/square_100/public/resource_images/smile-000-000-003-560.png?itok=NLTrfnsX)
Exploring Tessellations (Grades 3-5)
Source Institutions
In this activity, learners repeat patterns in two and three dimensions to create tessellations.
![](/sites/default/files/styles/square_100/public/resource_images/smile-000-000-004-496.gif?itok=xx__qnd_)
Clay Beams and Columns
Source Institutions
In this activity, learners make or use pre-made clay beams to scale and proportion. Specifically, they discover that when you scale up proportionally (i.e.
![](/sites/default/files/styles/square_100/public/resource_images/smile-000-000-003-556.png?itok=LxhdP0_v)
Exploring Tessellations (Grades 6-8)
Source Institutions
In this activity, learners design unique tiles and make repeating patterns to create tessellations. This activity combines the creativity of an art project with the challenge of solving a puzzle.
![](/sites/default/files/styles/square_100/public/resource_images/smile-000-000-003-554.png?itok=qEH3RJ4o)
Soda Can Mirrors
Source Institutions
In this activity, learners explore how pictures change in curved mirrors. Learners make cylindrical mirrors by wrapping Mylar around soda cans.
![](/sites/default/files/styles/square_100/public/resource_images/smile-000-000-001-812.gif?itok=n2gfTtxU)
Greeting Card Boxes
Source Institutions
In this activity, learners make cool boxes out of old (or new) greeting cards or postcards.
![](/sites/default/files/styles/square_100/public/resource_images/smile-000-000-001-635.gif?itok=uOFfS4tM)
Dye Like A Natural
Source Institutions
In this activity, learners stain fabrics--on purpose!
![](/sites/default/files/styles/square_100/public/resource_images/smile-000-000-003-529.png?itok=1lTam4Ar)
Exploring Tessellations (Grades K-2)
Source Institutions
In this activity, learners repeat patterns in two and three dimensions to create tessellations. This activity combines the creativity of an art project with the challenge of solving a puzzle.
![](/sites/default/files/styles/square_100/public/resource_images/smile-000-000-004-493.jpg?itok=UDGUbujD)
Skewers and Garden Poles
Source Institutions
In this activity, learners build scaled-down structures and cantilevers in a series of "building out" challenges with bamboo skewers and tape.