A new paper, led by GRL Director Julie Libarkin, documents conceptions of invisible light held by middle and high school students as well as teachers. This paper identifies common issues students have with infrared and ultraviolet radiation, including ideas that persist into adulthood.
Invisible Misconceptions: Student Understanding of Ultraviolet and Infrared Radiation
ABSTRACT. The importance of nonvisible wavelengths for the study of astronomy suggests that student understanding of nonvisible light is an important consideration in astronomy classrooms. Questionnaires, interviews, and panel discussions were used to investigate 6–12 student and teacher conceptions of ultraviolet (UV) and infrared (IR). Alternative conceptions about the characteristics and human sensual perception of visible light, UV and IR, were observed in many students and in a subset of teachers. Instruction involving electromagnetic radiation should first address preexisting alternative conceptions, and conceptual questionnaires such as the one used here can help teachers to identify student ideas prior to instruction.