#teaching #teachingmanuelacasasoli #education
Thinking about educational activities on polyhedra, I found this precious site collecting stunning drawings of radiolaria by Ernst Haeckel (1904). A lot of geometry can be done with radiolaria shells!
Ernst Haeckel: Die Radiolarien

Look at this animation of radiolarian diversity:
1-https://en.wikipedia.org/wiki/File:Animation_of_radiolarian_diversity.gif
2-https://en.wikipedia.org/wiki/Radiolaria
3-https://blogs.egu.eu/divisions/ts/2018/07/03/minds-over-methods-linking-microfossils-to-tectonics/