In lower level, students usually assume that compounds containing toxic elements like cadmium, mercury and lead are toxic too! “. . . but this agreement breaks down for radicals, complex molecules and homonuclear molecules. As a result such tests are not potential enough to discriminate misconception from lack of knowledge” . On the other hand senior high school students and even university freshmen were found to have certain misconceptions on the difference between chemical and physical change (Jensen, 1998) . .This implies that diagnostic tests like multiple choice items and two-tier tests are less efficient in exactly figuring out the extent of students’ misconceptions. . Using them interchangeably under such circumstances can lead in misleading description of nature and properties of the molecules . In the same level, many believe that all metallic atoms are hard and all non metals are soft (Tsaparlis, 2002). .
Елисеева О.И. Екатерина 2
Книги Издательство Махаон Подружки невесты
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Коментарии “Abayneh Lemma Diagnosing the Diagnostics”
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