I always get questions about how I made the Origami Dodecahedron. I found a helpful tutorial on YouTube and used 11″×11″ Post-It Notes (from Amazon) for a larger, playful version. I even reinforced the structure with glue — and after several play sessions, added staples to keep it sturdy.
The whole project took me a couple hours. Folding the larger sheets takes a little extra time than with smaller paper, but that makes the result even more satisfying. The giant paper model was an instant hit -- the kids always ask if they can wear it like a hat!
What really stands out is how well this activity blends creativity, craftsmanship, and geometry. Folding the dodecahedron isn’t just “arts and crafts” — because origami engages spatial reasoning, symmetry, and geometric thinking, it works beautifully as a hands-on lesson in a geometry class.
If you’re looking for a fun, tactile project that’s more than just decorative — something that teaches geometry through hands-on folding while still being silly and playful — I can’t recommend the Origami Dodecahedron enough. It’s a craft you and friends (or a class full of students) will enjoy building and showing off.
My Supply List (Items are Linked):
11"x11" Post-It Notes (You will need to make 30 modular units = 30 Post-It Notes)
My Supply List (Items are Linked):
The R3 Graphing Box A hands-on, computer-free way for students to visualize basic 3D analytic geometry concepts typically covered in a Calculus III course. The entire box is covered in packing tape, making it dry-erase!
Some topics I introduced with it in my Calc III class:
the general vibe of 3D space & plotting 3D points
the idea of slicing 3D figures into 2D cross-sections
turning a 2D line into a 3D plane
parallelepipeds
integrating over a rectangular area
cylindrical and spherical coordinates
McNeese Department of Mathematical Sciences Office Art. Haile Gilroy (2023). Acrylic mural. McNeese DMS Faculty and Staff submitted their "favorite thing in math".
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