Abstract
Bearing in mind the misconceptions that have been observed in the foregoing research studies, the purpose of the present study was to carry out a series of constructivist activities in order to change future elementary and junior high school teachers’ conceptions about the reason of the seasonal changes, and several characteristics of the Sun-Earth-Moon relative movements like Moon phases, Sun and Moon eclipses, and more. The activities and results concerning the cause of seasonal changes are reported here.
