 From 1923 to 1932 he held lectures in physics at "Noregs lærarhøgskule".Together with school teacher Sverre Bruun he wrote textbooks for schools; "Lærebok i fysikk for middelskolen" (1928) and "Lærebok i fysikk for realgymnasiet" (1933).Their book was reissued many times, and competed with Daniel Isaachsen and Gabriel Gabrielsen Holtsmark's "Fysikk for gymnasiet".