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Direct linkvan Eijck, Michiel; Goedhart, Martin J.; Ellermeijer, Ton – Research in Science Education, 2011
Polysemy in graph-related practices is the phenomenon that a single graph can sustain different meanings assigned to it. Considerable research has been done on polysemy in graph-related practices in school science in which graphs are rather used as scientific tools. However, graphs in science textbooks are also used rather pedagogically to…
Descriptors: Graphs, Textbook Content, Textbooks, Biology
Acar, Burcin; Tarhan, Leman – Research in Science Education, 2008
The present study focused on investigating the effectiveness of instruction via newly developed teaching materials based on cooperative learning when compared to a traditional approach, on ninth grade students' understanding of metallic bonding. Fifty-seven ninth grade science students from two science classes in the same high school participated…
Descriptors: Experimental Groups, Control Groups, Cooperative Learning, Chemistry
