The workshop for the GAIA project “Learning to save energy in school buildings” was held on Sunday, December 18th in Athens at Maraslio Didaskalio, within the frame of the HiSTEM2016 conference. Teachers from the participating schools (1st Junior High School of Rafina, 1st Junior High School of N. Philadelfia, 6th Primary School of Kaisariani, 5th Primary School of N. Smirni, Primary school of Filothei and 3rd Primary School of N. Philadelfia) and other conference participants attended the workshop and showed great interest for the project. Initially, Mrs Evangelia Boufardea from CTI “Diophantus” presented the project and its goals and then Mrs Nelly Leligou from Sylelixis presented the GAIA applications and how they can be used by the GAIA users. Afterwards, Mr Pavlos Koulouris from Ellinogermaniki Agogi presented the main axes of the educational scenarios. The presentations were followed by a constructive discussion with attendees. The workshop presentations are available here.