- Stars, snowflakes, a windmill , ... these are objects from real life. The geometry they have in common are linear functions.
Look at the GeoGebra book with nearly 20 real life objects created by Italian students.
- Citron squeezer, donats .... these are all objects from real life. The geometry of all these objects hasto do with transformations.
The GeoGebra applet shows a model of a citrus squeezer created by Riccardo Manaila from the Italien school.
GeoGebra book with more everyday objects (IT)