How to study materials on the world?

Huge community of GeoGebra users.
Various materials constructed by users in the world.[br][list][*][url=https://www.geogebra.org/materials]https://www.geogebra.org/materials[/url][/*][*]You can find materials with search icon.[/*][/list]
GeoGebra main menu -> View -> Construction Protocol
– Tatsuyoshi Hamada

Information: How to study materials on the world?