Geogebra Resources by Others on Primary Mathematics
Jessica's Fraction Book
https://www.geogebra.org/m/edxwq9jv
Elementary School Applets
https://www.geogebra.org/material/show/id/rSjV8S8q
HTML5 Collection for Primary Mathematics
https://www.geogebra.org/material/show/id/aHUtYYRK (Tablet friendly applets)
Frazioni, percentuali by leucotea
https://www.geogebra.org/m/HjGAVbR2
EngageNY / Eureka Math by Duane Habecker
https://www.geogebra.org/m/ua4yNy75
Primary Math Contests by Arthur Lee
https://www.geogebra.org/m/D4pCGA6D
HTML5 collection from Primary Contest by GeoGebra Institute of Hong Kong
https://www.geogebra.org/m/vEXSFTNk
Elementary School Math: 300+ Resources by GeoGebra Team
https://www.geogebra.org/m/xnrmmkjt