GeoGebra Prim is the new version for elementary school students. This verison has the following features:
Larger font size
Restricted set of tools
Some available tools visible at once
Larger/Thicker Objects
Angles always between 0˚ and 180˚ (by default)
Just the Graphics View showing
Rounding to nearest whole number (by default)
Video presentation of GeoGebra Prime.
Source files for video presentation.