# Corinna Beuermann-Kulp

Pädagogische Mitarbeiterin
Elementary School Friedland
37133 Friedland, Landkreis Göttingen, Niedersachsen, Germany

I work at the elementary school in Friedland and create and sew unique mathematical geometrical toys for children 5 years old and older. Together with the mathematical institute of the university in Göttingen, I developed the "Kindergarten Koffer" - a suitcase with different Puzzles: 8 mathemagic cubes, 1 Pentomino, 1 Sudoku, the magnetic dodecagon and the Maths Pie. I made many spheres with different tilings on the surface, and 18 edge models from polyhedra. My hobby is sewing stellated polyhedra, quilts and other robust, elastic, haptic and soft toys/puzzles!

My circular quilt: "Da staunst Du - 29 Bauklötze!" was shown in Germany during the year of math in 2008. Last year I have enjoyed my first bridges conference in Jyväskylä.

Kirigami Canada 150 Logo - a homage to Ariana Cuvin
10 x 10 x 10 cm
Cardboard paper
2017

University of Waterloo student, Ariana Mari Cuvin, entered and won a contest to create a logo for Canada’s 150th anniversary. I decided to create a Kirigami maple leaf in the style of this logo. Kirigami is the Japanese art of paper cutting. The shapes will be assembled to a Cartesian coordinate system, which uses one or more numbers, called coordinates, to uniquely determine the position of a point or other geometric element on a manifold such as Euclidean space. One basic concept of school geometry is symmetry. The maple leaf is mirror symmetrical, which produce regularity. Press the maple leaf diagonally from North to South, or from West to East, and you will have a broad or slender maple leaf. Comprehend maths with head, heart and hand.

Giffmieäschongß/Giffmieäscheynsch! Givemeachan(c|g)e!
20 x 20 x 20 cm
Cotton fabric, thread, Decovil, paper
2017

Model of rhombic dodecahedron

The material is very haptic, sturdy and very well suited for curious kids.
On the surface of the polyhedron you can discover triangles. These can be folded toward the center or the outside, thereby changing the appearance from a rhombic dodecahedron to an octahedron or cubus or tetrahedron or whatever you find out in your imagination. The polyhedron also works as sports equipment: You can throw it and with the appearance change you can change the flight trajectory.

Count the polygonal faces, straight edges and vertices to discover Eulers characteristic and make your math teacher happy! Because all Givemeachan(c|g)e! are different.
Comprehend maths with head, heart and hand.