To uninstall education-workstation just follow these instructions.
sudo apt-get remove education-workstation
This will remove just the education-workstation package itself.
sudo apt-get remove --auto-remove education-workstation
This will remove the education-workstation package and any other dependant packages which are no longer needed.
If you also want to delete your local/config files for education-workstation then this will work.
sudo apt-get purge education-workstation
Or similarly, like this education-workstation
sudo apt-get purge --auto-remove education-workstation
|Maintainer||Debian Edu Developers <firstname.lastname@example.org>|
|Description||Debian Edu networked workstation packages|