The Journey of a Sandwich: Computer-Based Laboratory Experiments about the Human Digestive System in High School Biology Teaching

Autor/inn/en	Sorgo, Andrej; Hajdinjak, Zdravka; Briski, Darko
Titel	The Journey of a Sandwich: Computer-Based Laboratory Experiments about the Human Digestive System in High School Biology Teaching
Quelle	In: Advances in Physiology Education, 32 (2008) 1, S.92-99 (8 Seiten)Infoseite zur Zeitschrift PDF als Volltext Verfügbarkeit
Sprache	englisch
Dokumenttyp	gedruckt; online; Zeitschriftenaufsatz
ISSN	1043-4046
DOI	10.1152/advan.00035.2007
Schlagwörter	Leitfaden; Unterricht; Lehrer; Active Learning; Laboratory Experiments; High School Students; Biochemistry; Food; Foreign Countries; Action Research; Slovenia + Suchen Sie Ihr Suchwort? Lesson concept; Instruction; Unterrichtsentwurf; Unterrichtsprozess; Teacher; Teachers; Lehrerin; Lehrende; Aktives Lernen; Laboratory work; Laborarbeit; High school; High schools; Student; Students; Oberschule; Schüler; Schülerin; Studentin; Biochemie; Lebensmittel; Ausland; Projektforschung; Slowenien
Abstract	Teaching high school students about the digestive system can be a challenge for a teacher when s/he wants to overcome rote learning of facts without a deeper understanding of the physiological processes inside the alimentary tract. A series of model experiments illustrating the journey of a sandwich was introduced into teaching high school biology. Using a computer equipped with a commercially available data-acquisition system and a couple of sensors, it was possible to illustrate the basic underlying physical and chemical principles of digestion to the students. Students were able to investigate, through hands-on activities, the chewing force of the jaws, importance of the mechanical breakdown of food, enzymatic activity of pepsin and amylase, antibacterial activity of hydrochloric acid, and importance of the villi for absorption. Students found the experiments interesting and helpful for understanding the digestive process. Furthermore, the results from testing indicated that the students had a deeper understanding of the physiological processes. (Contains 8 figures and 1 table.) (Author).
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Erfasst von	ERIC (Education Resources Information Center), Washington, DC
Update	2017/4/10