As you probably know, the OpenOffice.org Education Project aims to create a bridge between Educational world an OpenOffice.org, through several actions. One of the results is OOo4Kids : http://wiki.ooo4kids.org
Download : http://download.ooo4kids.org
Disclaimer: this is a light version of OpenOffice.org, running on Mac OS X, Windows and Linux, who aims to explain the students learning OOo source code, how to hack, modify and so on. Means there is no Java nor Base, and if you need them, please use OpenOffice.org instead.
Some new features are scheduled, and if the code worth it, a backport will be proposed into OpenOffice.org.
Anyway, any help and contribution (see http://http://download.ooo4kids.org/en/Donate ) are welcome

Eric Bachard
Lead,
OpenOffice.org Education Project