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Neber, Heinz; Anton, Michael – International Journal of Science Education, 2008
In high-school chemistry the pre-experimental phase of inquiry cycles often remains neglected. According to a procedural model, which is described in the text, this phase begins with an observation that stimulates students' prior factual knowledge, the formulation of a research question for further elaboration (epistemic questions), the…
Descriptors: Experimental Groups, Control Groups, Intervention, Chemistry