 Afterwards, Falkovitsh worked as a lecturer on Yiddish linguistics at the Second Moscow State University (later known as the Moscow Teachers' Training Institute) and at the Communist University of the National Minorities of the West.Falkovitsh, together with Ayzik Zaretski, was central in molding the standards of Soviet Yiddish in regards to lexicon, grammar, style, and orthography .After advocating the study of the Pentateuch and the works of Hayim Nahman Bialik and Sholem Asch, Falkovitsh temporarily lost his positions in 1937.