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Materians och energins bevarande: En studie av gymnasieelevers uppfattningar
Karlstad University, Faculty of Technology and Science.
2012 (Swedish)Independent thesis Advanced level (degree of Master (One Year)), 20 credits / 30 HE creditsStudent thesisAlternative title
Matter and energy conservation : A study of high school students' perceptions (English)
Abstract [sv]

Syftet med denna studie är att undersöka elevernas uppfattningar om materians uppbyggnad och om materians och energins bevarande. Den föreliggande studien baseras på en kvantitativ analys i form av en elektronisk enkät, som föregicks av en kvalitativ analys i form av, strukturerade intervjuer och demonstrationer.

Eleverna har kunskap om vardagsnära exempel, som till exempel vad en stekpanna är uppbyggd av. De ansåg att dessa är exempel på materia men när det gäller mer abstrakta begrepp som ljus, magnetfält, skugga, vakuum, värme och ljud uppvisar eleverna mer osäkerhet och brist på kunskaper. Hälften av eleverna svarade att luft är materia, vilket tyder på ”gasblindhet” hos de övriga. Mellan 20 och 45 % av eleverna har inte kunskap om atomens uppbyggnad. Det framgick av studien att eleverna har svårt för materia- och energiomvandlingar i mer komplexa system såsom kolets kretslopp, vattnets kretslopp samt fotosyntesen. Gällande gasbildning och gaskännedom så framkom det att mer än hälften av eleverna hade kunskap om det.

Abstract [en]

The purpose of this study is to investigate students' perceptions of matter and conservation of matter and energy. This study is based on a quantitative analysis in the form of an electronic questionnaire, which was preceded by a qualitative analysis in the form of structured interviews and demonstrations.

It is fairly easy for students to understand matter in questions about objects in everyday life, but more difficult in abstract concepts such as light, magnetic fields, shade, vacuum, heat and sound. Half of the students answered that air is matter, which indicates "gas blindness" of the other. Between 20 and 45 % of the students have poor knowledge of the structure of the atom. It appeared that students have problems with matter and energy transformations in more complex systems such as the carbon cycle, the water cycle and photosynthesis. Concerning gas formation and gas knowledge it appeared that half of the students had knowledge about the phenomena.

Place, publisher, year, edition, pages
2012. , 81 p.
Keyword [en]
Matter conservation, energy conservation, high school studnets' perceptions and photosynthesis
Keyword [sv]
Materians bevarande, energins bevarande, gymnasieelevers uppfattningar och fotosyntesen
National Category
Natural Sciences
Identifiers
URN: urn:nbn:se:kau:diva-16356Local ID: KEM-33OAI: oai:DiVA.org:kau-16356DiVA: diva2:586278
Subject / course
Chemistry
Presentation
2012-12-10, Hus 9E, sal 413, Karlstads universitet, Karlstad, 13:00 (Swedish)
Uppsok
Physics, Chemistry, Mathematics
Supervisors
Examiners
Available from: 2013-01-17 Created: 2013-01-11 Last updated: 2016-10-10Bibliographically approved

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CiteExportLink to record
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