id	author	title	date	pages	extension	mime	words	sentence	flesch	summary	cache	txt
ijassa-119	Karamanos, Kostas; Gkiolmas, Aristotelis; Chalkidis, Anthimos; Skordoulis, Constantine; Papaconstantinou, Maria; Stavrou, Dimitrios	Ecosystem Food-webs as Dynamic Systems: Educating Undergraduate Teachers in Conceptualizing Aspects of Food-webs' Systemic Nature and Comportment	2012	20	.pdf	application/pdf	5461	256	55	[21] Gallegos L, Jerezano M E, & Flores F. (1994), “Preconceptions and relations used by children in the construction of food chains”, Journal of Research in Science Teaching, Vol.31, No.3, pp.259-272. Students were initially given specifically designed pre-test worksheets, to find out their initial knowledge and pre-instructional ideas about the structure and the properties of food-webs as systems.	cache/ijassa-119.pdf	txt/ijassa-119.txt