From Linux Schools Project Documentation
Software can be the easiest way to save money and introduce Open Source to your school. We have listed both alternative software and software that we know works in Wine.
If you are willing to search though a complete list of Open Source Software for your needs there is a list here : http://en.wikipedia.org/wiki/List_of_free_and_open_source_software_packages
For an Open Source disk ready packaged for students and staff OpenDisc can be found here: http://www.theopendisc.com/