Students’ Alternative Conceptions and Risk Perceptions of Radiation and Radioactivity

Abstract

In this paper, we share and discuss findings from our study involving Grades 9–12 Singapore students’ conceptions and perceptions of radiation and radioactivity. The students would have learned in science lessons about electromagnetic waves and the basic atomic structure but had no prior formal classroom lessons on radioactivity and nuclear physics. We found similar alternative conceptions and risk perceptions held by the students as reported in literature. These findings provide useful background knowledge for teachers to consider when developing learning experiences for students in this topic, with the goal to develop a strong foundation in the related key concepts and address risk perception gaps for students to make responsible and informed decisions on scientific and technological applications associated with radiation and radioactivity.