We use Debian on every computer of our institution; we have 22 computers used by our students, 3 more assigned to teachers, 3 supporting administrative staff and 1 24/7 Internet connected server. We support the grading and accounting process using software that is being developed at http://structio.sourceforge.net/ in addition to the thousands of programs offered by the distribution.
These resources are used by all the academic community, children from 6 and teachers up to 60 experience the system. Our internal DNS, NIS/NFS rings, wireless operation, CVS, HTTP, FTP, Dict, chat, email, routing schemes services are supported also by Debian.
We are using Debian exclusively since 2001. Its numerous packages, ease of administration, wide documentation, and friendly community vindicated our choice. We have a more comprehensive description in Spanish at http://www.gfc.edu.co/si/linux/
Our students are also learning and installing at their homes and their parents are on the way, too. They are also exploring, learning, creating, promoting and sharing with others their knowledge, and also helping some non-profit organizations in our city.