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Coştu, Fatma
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Revealing Fifth-Grade Students’ Understanding of the Universe Coştu, Fatma; Özdemir, Nesibe Firdevs; Coştu, Bayram
Mimbar Sekolah Dasar Vol 9, No 1 (2022)
Publisher : Universitas Pendidikan Indonesia

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.53400/mimbar-sd.v9i1.43660

Abstract

Previous research has shown that students at almost all levels have misconceptions about both the shapes and sizes of celestial bodies in space. This study is essential to conduct on the students who take space topic in their schools for the first time This study aims at revealing fifth-grade students’ alternative conceptions about the size of the sun, earth, and moon and their relative positions to each other. This study employs action research by using a forced questionnaire and interview were used as the research instruments and involved 78 fifth-grade students as participants. To collect data, all students initially responded to a forced question questionnaire. Then, based on their responses, four students were chosen to be interviewed to clarify their alternative conceptions. The data analysis was carried out using interview and questionnaire data to reveal understanding and alternative conceptions of students’ responses. The results found that students had alternative conceptions of the earth’s shape in their minds. Moreover, alternative conceptions are commonly found in the sun, earth and moon positions.
The Effectiveness of Predict-Explain-Observe-Discuss-Explain (PEODE) Based Laboratory Work Activities on Pre-Service Science Teachers’ Science Process Skills Coştu, Fatma; Bayram, Hale
Mimbar Sekolah Dasar Vol 8, No 1 (2021)
Publisher : Universitas Pendidikan Indonesia

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.53400/mimbar-sd.v8i1.30897

Abstract

This research aims at investigating the effectiveness of the Predict-Explain-Observe-Discuss-Explain (PEODE) based laboratory work activities on pre-service science teachers’ science process skills. A quasi-experimental research model with pre- and post-test via control group was employed in the research. The semi-experimental study was based on 46 pre-service science teachers enrolled in the primary Science Education Program a state university. In the research, randomly selected two groups were used, one experimental group (EG; n = 22) and one control group (CG; n = 24). While the control group participated in traditional laboratory activities work, the experimental group took part in the PEODE-based laboratory work activities. Laboratory activities were carried out in both groups for a total of 9 weeks, two hours a week. Science process skills test (SPST) measuring five different scientific process skills were presented to them as pre- and post-test in order to assess pre-service science teachers’ science process skills. The test scores were analyzed quantitatively with a statistical analysis program. At the end of the research, while there was no significant differences total score of the SPST, significant statistical differences were found between the experimental and control groups in "Making Operational Comments" and "Designing the Research" sub-skills.
Co-Authors Bayram, Hale Costu, Bayram Özdemir, Nesibe Firdevs