THE MOLE CONCEPT: STUDENTS’ MISCONCEPTIONS, DIFFICULTIES AND THE CHALLENGE.

Indriyanti, Nurma Yunita (2017) THE MOLE CONCEPT: STUDENTS’ MISCONCEPTIONS, DIFFICULTIES AND THE CHALLENGE. PhD thesis, Universitas Sebelas Maret.

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    Abstract

    Teaching and learning the ‘amount of substance’ concept is a big challenge for learners and teachers. Researchers found consistent misconceptions regarding the mole. There are three common misconceptions: students think that the mole is a certain mass, a certain number of gas particles, and/or is a property of molecules. The mole’s principle value is to be a tool that indirectly counts atomic/molecular particles of substances by weighing macroscopic amounts of substances. The 1st year undergraduate students in Germany and Indonesia experienced the same misconceptions based on the results of this study. Misconceptions and insufficient chemistry learning in term of submicro level become the main reason. To overcome the major difficulties in learning the mole concept mentioned above, the mole triangle using experiential learning was suggested to be effective. Weighing: we use pure substances in laboratory or stuff in everyday life as macro level comprehension. The submicro-base model of expression is focused in mental models related to particles, and then a representational level follows. These three levels are connected to form a triangle that supposed as the mole triangle. The research to analyze implementation of the new concept for teaching the mole was conducted both in Germany and Indonesia. It has been carried out with mixed method research design. Differences of educational system and curriculum between two countries were studied. Instructional manipulation using the mole triangle in experiential learning was implemented in experimental group compared to conventional learning in control group. Students’ comprehension in term of multiple representations in chemistry was analyzed and discussed with their problem solving ability. Based onthe statistical results, there were significant differences between the posttest scores of the experimental and the control groups. This result indicates that the students have a different level of understanding in representing knowledge in learning the mole topic. [Keywords: misconceptions, mole triangle.]

    Item Type: Thesis (PhD)
    Subjects: Q Science > QD Chemistry
    Divisions: Pasca Sarjana
    Pasca Sarjana > Doktor
    Depositing User: Fransiska Meilani f
    Date Deposited: 19 Apr 2017 10:13
    Last Modified: 19 Apr 2017 10:13
    URI: https://eprints.uns.ac.id/id/eprint/33605

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