The purpose of this study was to investigate both the individual and relative effectiveness of two conceptual change interventions, gender and their interactions on preservice science teachers' conceptual understanding and their misconceptions in mechanical waves. The interventions are conceptual change texts enriched with concept cartoons (CCTCC)…

In this article, we discuss the lessons learned in a system thinking course developed in a multicampus, distance-learning environment. Forty-six undergraduate students were involved; the students were from four campuses of the Federal University of São Paulo, Brazil. We explain the course design, curriculum and online components. We analyze the…