2017
DOI: 10.1088/1361-6552/aa6d27
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Developing students’ ideas about lens imaging: teaching experiments with an image-based approach

Abstract: Lens imaging is a classic topic in physics education. To guide students from their holistic viewpoint to the scientists' analytic viewpoint, an image-based approach to lens imaging has recently been proposed. To study the effect of the image-based approach on undergraduate students' ideas, teaching experiments are performed and evaluated using qualitative content analysis. Some of the students' ideas have not been reported before, namely those related to blurry lens images, and those developed by the proposed … Show more

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Cited by 8 publications
(6 citation statements)
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“…By identifying and defining organizational categories for lens phenomena, we support the careful and orderly description of the phenomena before relating them to the ray model. The relationship between eye caustic and light caustic can be used in optics lessons as an example of how the linking of embedded and detached perspective enables the exploration of optical phenomena (for further examples see [19,[28][29][30][31]). We show how the topological structure of the eye caustic behind a ball lens can be explored with the help of a test object.…”
Section: Discussionmentioning
confidence: 99%
“…By identifying and defining organizational categories for lens phenomena, we support the careful and orderly description of the phenomena before relating them to the ray model. The relationship between eye caustic and light caustic can be used in optics lessons as an example of how the linking of embedded and detached perspective enables the exploration of optical phenomena (for further examples see [19,[28][29][30][31]). We show how the topological structure of the eye caustic behind a ball lens can be explored with the help of a test object.…”
Section: Discussionmentioning
confidence: 99%
“…In addition, the connection to their own visual experience can motivate and increase the feeling of selfefficacy. The approach of the embedded perspective can also be applied to other optical contexts such as the mirror, the lens or diffraction and can therefore also be used in optics lessons [26,[44][45][46][47][48].…”
Section: Discussionmentioning
confidence: 99%
“…In this journal, the topic has been taken up on various occasions. Suggestions have been made for improving students' understanding, e.g., using calculation spreadsheets [1] and dynamic applets [2] for the construction of ray diagrams, image-based approaches [3,4] or inquiry-based and phenomenological approaches [5,6]. Regarding predicting the location and position of real images formed by converging lenses, we propose an epistemological approach by emphasising the importance of underlying idealisations.…”
Section: Introductionmentioning
confidence: 99%