Paper Basket https://www.mathematische-basteleien.de/basket.htm
How to fold a basket from a sheet of paper.
(If you have no practise, you should pre-fold by several halvings.) 10 …
Dein Suchergebnis zum Thema: have
Flexatube http://www.mathematische-basteleien.de/flexatubes.htm
A simple puzzle, but not easy to solve.
There is also a bag on the reverse side, but the colours have changed.
Fünfstrahlige Figuren https://www.mathematische-basteleien.de/fuenfstrahlig.htm
Meine Sicht fünfstrahliger Figuren
Links ein Beispiel Kepler-Poinsot-Körper „All four (Kepler-Poinsot Polyhedra) have
Homepage 1999 – how it started https://www.mathematische-basteleien.de/homepage1999e.htm
Homepage 1999 – how it started
A colleague suggested: „Think of newspapers, they have narrow columns for better
Spirograph https://www.mathematische-basteleien.de/spirographs.htm
Spirograph and its mathematical background
In the end you have to use both trigonometric formulas. Result: ……
Cuboctahedron http://www.mathematische-basteleien.de/cuboctahedron.htm
About the cuboctahedron
Opposite areas have the same colours.
Paper Boat https://www.mathematische-basteleien.de/paper_ship.htm
How to make a paper boat
You have formed the well known hat. 9 … Turn the hat 90 degrees and open it.
Sonobe Star http://www.mathematische-basteleien.de/sonobestar.htm
My page about the Sonobe star
You just have to make sure that not five pyramids but four pyramids form a wreath
Ladder Problems https://www.mathematische-basteleien.de/ladder.htm
A Collection of Ladder Problems
There are two similar triangles (yellow) and you have (##) x:b=b:y.
Mandelbrot Set https://www.mathematische-basteleien.de/mandel_set.htm
Making of the Mandelbrot Set and its mathematical background
Provided that you have a palette with 10 colours (0 to 9).