During his life Garibian, besides being a scientist, was also an educator: he lectured to students at the Physical Mathematical Department of Yerevan State University from 1951 to 1964 (on the topics of classical and quantum electrodynamics, theory of electrons and theory of relativity) and from 1970 to 1973 (on the topic of the passage of fast particles through matter). In the years 1965-1969 he worked also as a Chief of the Theoretical Department of Institute of Radiophysics and Electronics, Armenian AS. Under his leadership many of his disciples achieved their Doctoral degrees and became prominent scientists. He was also interested in documenting the history of progress of physics in Armenia. One of his papers on this topic was co-authored with physicists Artsimovich, Migdal and Jelepov and was dedicated to the Artyom Alikhanian's 60th birthday. From 1966 Garibian worked also as an Executive Editor of the journal "Proceedings of the Academy of Sciences of the Armenian SSR. Physics ".