Helge Strömdahl (1945-2018)

This article is written in memory of Professor Helge Strömdahl (1945-2018), the former director of the Swedish National Graduate School in Science and Technology Education (FontD). Helge took his Ph.D. at Gothenburg University in 1996 with the dissertation “On mole and amount of substance. A study of the dynamics of concept formation and concept attainment”. He was director of the Swedish National Graduate School in Science and Technology Education (FontD) from 2001 until his retirement in 2010, and became professor in science education at Linköping University. As director of the national graduate school, Helge encouraged and cultivated a methodologically and theoretically broad view on research in science education.