Most of the time, the developer mailing list is our main medium for communication, though we also have #debian-edu on irc.debian.org and even, sometimes, real gatherings, where we meet each other in person.
A good way to learn what is happening in the development of Debian Edu is to subscribe to the commit mailinglist.
Debian Edu uses the Debian Bug Tracking System (BTS). View existing bug reports and feature requests or create new ones. Please report all bugs against the package debian-edu-config. Take a look at How To Report Bugs for more information on bug reporting in Debian Edu.
Documentation writers and translators
This document needs your help! First and foremost, it is not finished yet: if you read it, you will notice various FIXMEs within the text. If you happen to know (a bit of) what needs to be explained there, please consider sharing your knowledge with us.
The source of the text is a wiki and can be edited with a simple webbrowser. Just go to https://wiki.debian.org/DebianEdu/Documentation/Bookworm/ and you can contribute easily. Note: a user account is needed to edit the pages; you may need to create a wiki user account first.
Another very good way to contribute and to help users is by translating software and documentation. Information on how to translate this document can be found in the translations chapter of this book. Please consider helping the translation effort of this book!