A little knowledge is a dangerous thing: understanding of rectilinear propagation vs. diffraction of light
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15 mars 2020
- handle: 10670/1.8aifrr
- hal: hal-02510382
http://creativecommons.org/licenses/by-nc-nd/ , info:eu-repo/semantics/OpenAccess
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School life Students--Education Pupils Student life and customs School children--Education Pupils Schoolchildren Elementary school students Primary school students Eyes Eyeball Visual system Explanation (Philosophy) Students--Education Children--Education Education of children Schooling Pedagogy Youth--Education Instruction Education, Primitive Human resource development Drawings Sketching Gases--Diffusion Liquids--Diffusion Understanding Communication, Primitive Mass communication Box (Plants) Boxes (Plants) Buxus sempervirens Box Common box European boxwood Buxus Common boxwood Grown-ups Adults Grownups broadcastingCiter ce document
Estelle Blanquet et al., « A little knowledge is a dangerous thing: understanding of rectilinear propagation vs. diffraction of light », HAL-SHS : sciences de l'éducation, ID : 10670/1.8aifrr
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Résumé
The study aims to identify the participants’ representations of light and its propagation from a primary source through the closed space of a black box and in the absence of multiple diffusion and reflection. The elements of explanation then involve two distinct notions: that light propagates in a straight line; and the necessity for the light to reach the eye in order to be seen.Counter-intuitively enough, in both countries, the percentage of correct answers decreases in a similar way as primary school school children grow up, to become a small minority among students at university (11% in Romania and 16 to 27% in France). Percentage of correct drawings among adults varies between 11% (Romanian future primary school teachers) and 27%. Comparaison with their written explanations reveals an excellent concordance.