Customizing the Toolbar
We can customize the toolbar so that we can hide the tools that we do not want to show in a GeoGebra applet.
The following is an example about constructing a midpoint between two points using straightedge and compass only i.e. students can only use the line tool 
and circle tool 
in the construction.
Classwork: Take away the line tool from the toolbar.
and circle tool in the construction.
Classwork: Take away the line tool from the toolbar.