ǂThe ǂjourney of a sandwich: computer-based laboratory experiments about the human digestive system in high school biology teaching

Andrej Šorgo (Avtor), Zdravka Hajdinjak (Avtor), Darko Briški (Avtor)

Povzetek

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 fromtesting indicated that the students had a deeper understanding of the physiological processes.

Ključne besede

vzgoja in izobraževanje;biologija;visoke šole;education;biology;high schools;data logging;

Podatki

Jezik:	Angleški jezik
Leto izida:	2008
Tipologija:	1.01 - Izvirni znanstveni članek
Organizacija:	UM FNM - Fakulteta za naravoslovje in matematiko
UDK:	57:372.857:004
COBISS:	15919368
ISSN:	1043-4046
Št. ogledov:	1212
Št. prenosov:	111
Ocena:	0 (0 glasov)
Metapodatki:

Ostali podatki

Sekundarni jezik:	Angleški jezik
Sekundarne ključne besede:	vzgoja in izobraževanje;biologija;visoke šole;
URN:	URN:SI:UM:
Strani:	str. 92-99
Letnik:	Vol. 32
Zvezek:	no. 1
Čas izdaje:	2008
ID:	8724016