Kiwix - Kiwix enables you to have the whole Wikipedia at hand wherever you go!
Clever - syncing between education applications for K-12 schools
Evopedia - Evopedia is an offline Wikipedia viewer. Features: no Internet connection needed
PowerSchool - PowerSchool provides a K-12 education technology platform for operations, classroom, student growth, and family engagement.
Aard Dictionary - Dictionary and offline Wikipedia reader.
Claroline - Claroline is a collaborative eLearning and eWorking platform.