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Derginin Adı:
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Problems of Education in the 21st Century
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Cilt:
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2010/19
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Sayı:
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19
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Makale Başlık:
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TEACHING CHROMATOGRAPHY IN SECONDARY SCHOOL - AN INVESTIGATION CONCERNING GRADE, CONTEXT, CONTENT, EXPERIMENTS AND MEDIA
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Makale Alternatif Dilde Başlık:
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Alternatif dilde başlık bulunmamaktadır. There is no article title in another language.)
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Makale Eklenme Tarihi:
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3.03.2016
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Okunma Sayısı:
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1
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Makale Özeti:
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This investigation focuses on how one of the best established and most efficient methods for the separation of substances – chromatography – is taught in secondary school. A questionnaire-based study with teachers (N=76) was used to get a first glance at the situation in schools. The results show that various chromatographic techniques (PC, TLC, GC, HPLC) are taught in secondary school using different context settings. All teachers use paperchromatography as a students‘ experiment analyzing e.g. colour pens in 7th grade. A far less amount of teachers cover more complex techniques such as gas chromatography e.g. in 12th grade. A detailed insight was attained by analyzing 37 chemistry lessons of 18 classes in 7th grade. It could be shown that a broad variety of experiments, remarkable differences in the use of scientific concepts to explain how chromatography works and in the application of media occure.
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Alternatif Dilde Özet:
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Alternatif dilde abstract bulunmamaktadır. (There is no abstract in another language.)
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