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Direct linkFranke, Gaitano; Bogner, Franz X. – Journal of Educational Research, 2011
In a German out-of-school laboratory, 293 medium-achieving 10th-grade students participated in a lesson unit about gene technology. They were divided into two groups (I-1, I-2), both of which followed the same hands-on lesson procedure. Students within I-2 were additionally confronted with alternative conceptions to central issues of the specific…
Descriptors: Units of Study, Misconceptions, Foreign Countries, Academic Achievement
