Istraživanje studentskog razumijevanja mjerenja i usporedbe izmjerenih podataka

Martinjak, Petra (2015) Istraživanje studentskog razumijevanja mjerenja i usporedbe izmjerenih podataka. Diploma thesis, Faculty of Science > Department of Mathematics.

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Abstract

The study of student understanding of measurement and uncertainty was carried out on 131 prospective physics teachers at Faculty of Science in Zagreb. 101 students were assessed by a paper-and-pencil test and the remaining 30 students solved a computerized test including the eye tracking. The test designed for this study consisted of 8 questions. In the first part of the question, students were asked to select one answer from a list of choices, and in the second part of the question they had to explain their choice. Questions referred to understanding of measurement and comparison of measurement results, as well as students’ understanding of the terms of accuracy and precision of measurement and how to write the final result of the measurement. The results showed that students have difficulties in this part of physics. The worst solved question was the one which was designed in order to determine the number that best represents a set of measurements, taking into consideration the fact that one of the measurements was an outlier. One part of the students had difficulties in understanding and distinguishing the terms of accuracy and precision of measurement as well as with comparison of measurement results. The best solved question was the one where students needed to correctly write the final result of the measurement. Statistical tests confirmed that the graphic representation of data helps to solve the question as well as the fact that the senior students achieved better results than the first-year students. The eye tracking method was used in order to determine the parts of the question that kept students’ attention, to provide information about the number of fixations on particular areas of interest, to make heat maps, etc. The obtained data showed that students who had graphical representation of data kept their attention less in the area which included a list of measured values. The obtained results confirm that graphical representation helps in better understanding of the measurement results. In order to improve pupils’ and students’ understanding of measurement, teachers should discuss more about the measurement procedure and data analysis. So, during physics classes the following issues should be discussed with students’: the number that best describes a set of measurements, how to deal with outliers, what to look for during the comparison of the results of several groups of measurement, and what is the final result of measurement and how to write it.

Item Type: Thesis (Diploma thesis)
Supervisor: Sušac, Ana
Date: 2015
Number of Pages: 70
Subjects: NATURAL SCIENCES > Mathematics
Divisions: Faculty of Science > Department of Mathematics
Depositing User: Iva Prah
Date Deposited: 23 Oct 2015 08:42
Last Modified: 23 Oct 2015 08:42
URI: http://digre.pmf.unizg.hr/id/eprint/4299

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