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Demircioglu, Gokhan – Asia-Pacific Forum on Science Learning and Teaching, 2009
This study examined whether the application of conceptual change texts are effective before or after the instruction on 10th grade students' conceptual understanding and alternative conceptions about acids and bases. The study was conducted with 76 10th grade students from three classes of a chemistry course taught by the same teacher. One of the…
Descriptors: Experimental Groups, Control Groups, Achievement Tests, Chemistry
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Manning, Doris E.; Graham, Nancy – 1975
The study was designed to test the effectiveness of three media approaches in presenting home economics career information to students. Taped interviews with three home economists in the fields of food service, child care, and fabric and fashion served as the basis for developing the presentations: (1) a tape recording, (2) tape-slide…
Descriptors: Audiovisual Instruction, Career Awareness, Careers, Comparative Testing