OpenCards is a flash card learning extension for OpenOffice Impress. The basic idea of OpenCards is to use slide titles as flash card fronts and the slide contents as their backs.
This release features Leitner flash card learning and different learning strategies, as well as persistent session states. It is not ready for production yet. Although it should be reasonably stable, it might crash OpenOffice or corrupt your presentation files or your OpenOffice settings.
URL: OpenCards - A free flashcard learning extension for OpenOffice