Helping Secondary School Students Develop a Conceptual Understanding of Refraction

Autor/inn/en	Ashmann, Scott; Anderson, Charles W.; Boeckman, Heather
Titel	Helping Secondary School Students Develop a Conceptual Understanding of Refraction
Quelle	In: Physics Education, 51 (2016) 4, Artikel 045009 (12 Seiten)Infoseite zur Zeitschrift PDF als Volltext Verfügbarkeit
Sprache	englisch
Dokumenttyp	gedruckt; online; Zeitschriftenaufsatz
ISSN	0031-9120
DOI	10.1088/0031-9120/51/4/045009
Schlagwörter	Secondary School Students; Scientific Concepts; Scientific Principles; Scientific Literacy; Demonstrations (Educational); Visual Aids; Light; Science Activities; Educational Practices; Teaching Methods; Michigan; Wisconsin + Suchen Sie Ihr Suchwort? Sekundarschüler; Demonstrationsexperiment; Demonstrationsmodell; Demonstrationsunterricht; Anschauungsmaterial; Licht; Bildungspraxis; Teaching method; Lehrmethode; Unterrichtsmethode
Abstract	Using real-world examples, ray diagrams, and a cognitive apprenticeship cycle, this paper focuses on developing students' conceptual (not mathematical) understanding of refraction. Refraction can be a difficult concept for students to comprehend if they do not have well-designed opportunities to practice explaining situations where reflection and refraction occur. The use of ray diagrams can be useful in (a) the teacher modelling a correct explanation to a situation where refraction occurs and (b) for students to create as they practice other examples. This paper includes eight examples of increasing complexity that use a cognitive apprenticeship cycle approach to scaffold student learning. The first examples (rock fish, floating penny) are shown and a solution is modeled using a ray diagram. Three more examples (bent pencil, dropping an item in water, sunrise/sunset) are presented for students to practice, with each becoming more sophisticated. Three assessment exercises are then provided (two dots, three coins, broken tube). (As Provided).
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Erfasst von	ERIC (Education Resources Information Center), Washington, DC
Update	2020/1/01