Student Conceptions of Holography (Schuelervorstellungen zur Holographie)

In a lesson on holography a tension is to be found between the ray model, the wave model, the phasor model and the particle model. Lessons depend on the previous experiences of the students, the intentions of the teacher as well as on other parameters and therefore provide a diversity in emphasis while explaining holographic effects. As class discussion concerning selected areas of interference optics and specifically holography develops in a questioning manner and with limited intervention from the teacher, numerous student conceptions with regard to interference optics and different model conceptions of light can be identified. Student interviews in which these discovered concepts are explored in greater detail can provide in depth information. Primary student conceptions, which were gathered in the main research conducted for a dissertation project will be presented here and analysed with a view to their didactic consequences.