To facilitate the remote education, the Greek National Center for Documentation and Electronic Content provides teachers with digital educational material. More than 1.200.000 content sources are freely available online, and primary and secondary school teachers have also access to 4 free online applications. The apps allow the teachers to search for digital content based on their educational needs, collaborate with each other, create their own educational material and online courses. The three topics that are covered by the applications are the Ancient Greek and Byzantine history, the modern Greek history and the natural and urban environment.